I have already tried this, the problem still persists, unfortunately. I have Nimbus Sans installed. I can see it in my font manager. I also have Arial, but not ArialMT.
is ArialMT the font I need?
I tried sudo apt-get install ttf-mscorefonts-installer
but it says it is already the newest version.
UPDATE:
fc-list | grep -i arialmt
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTNARROWITALIC.TTF: Arial MT Narrow:style=Italic
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTMEDIUMITALIC.TTF: Arial MT,Arial MT Medium:style=Medium Italic,Italic
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTNARROWBOLDITALIC.TTF: Arial MT Narrow:style=Bold Italic
/usr/share/fonts/truetype/arial-mt-cufonfonts/arialmt.ttf: ArialMT:style=Regular
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTEXTRABOLD.TTF: Arial MT,Arial MT Extra Bold:style=Extra Bold,Regular
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTLIGHTITALIC.TTF: Arial MT,Arial MT Light:style=Light Italic,Italic
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTEXTRABOLDITALIC.TTF: Arial MT,Arial MT Extra Bold:style=Extra Bold Italic,Italic
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTITALIC.OTF: Arial MT:style=Italic
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTBLACK.TTF: Arial MT Black:style=Regular
/usr/share/fonts/truetype/arial-mt-cufonfonts/arialmtblackitalic.ttf: Arial MT,Arial MT Black:style=Black Italic,Italic
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTMEDIUM.TTF: Arial MT,Arial MT Medium:style=Medium,Regular
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTNARROWBOLD.TTF: Arial MT Narrow:style=Bold
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTNARROW.TTF: Arial MT Narrow:style=Regular
/usr/share/fonts/truetype/arial-mt-cufonfonts/ARIALMTLIGHT.TTF: Arial MT,Arial MT Light:style=Light,Regular
flatpak run --command=fc-cache org.kde.okular -fv
Font directories:
/home/jali1989/.var/app/org.kde.okular/data/fonts
/usr/share/fonts
/usr/share/runtime/share/fonts
/run/host/user-share/fonts
/run/host/share/fonts
/home/jali1989/.fonts
/app/share/fonts
/run/host/fonts
/run/host/local-fonts
/run/host/user-fonts
/usr/share/fonts/dejavu
/usr/share/fonts/gnu-free
/usr/share/fonts/google-crosextra-caladea
/usr/share/fonts/google-crosextra-carlito
/usr/share/fonts/liberation-fonts
/usr/share/fonts/noto-emoji
/usr/share/fonts/tex-gyre
/run/host/fonts/X11
/run/host/fonts/cMap
/run/host/fonts/cmap
/run/host/fonts/eot
/run/host/fonts/opentype
/run/host/fonts/svg
/run/host/fonts/truetype
/run/host/fonts/type1
/run/host/fonts/woff
/run/host/fonts/X11/Type1
/run/host/fonts/X11/encodings
/run/host/fonts/X11/misc
/run/host/fonts/X11/util
/run/host/fonts/eot/fork-awesome
/run/host/fonts/opentype/font-awesome
/run/host/fonts/opentype/freefont
/run/host/fonts/opentype/linux-libertine
/run/host/fonts/opentype/malayalam
/run/host/fonts/opentype/noto
/run/host/fonts/opentype/porson
/run/host/fonts/opentype/urw-base35
/run/host/fonts/svg/fork-awesome
/run/host/fonts/truetype/Gargi
/run/host/fonts/truetype/Gubbi
/run/host/fonts/truetype/Nakula
/run/host/fonts/truetype/Navilu
/run/host/fonts/truetype/Sahadeva
/run/host/fonts/truetype/Sarai
/run/host/fonts/truetype/abyssinica
/run/host/fonts/truetype/ancient-scripts
/run/host/fonts/truetype/annapurna
/run/host/fonts/truetype/arial-mt-cufonfonts
/run/host/fonts/truetype/baskerville
/run/host/fonts/truetype/crosextra
/run/host/fonts/truetype/dejavu
/run/host/fonts/truetype/droid
/run/host/fonts/truetype/font-awesome
/run/host/fonts/truetype/fonts-beng-extra
/run/host/fonts/truetype/fonts-deva-extra
/run/host/fonts/truetype/fonts-gujr-extra
/run/host/fonts/truetype/fonts-guru-extra
/run/host/fonts/truetype/fonts-kalapi
/run/host/fonts/truetype/fonts-orya-extra
/run/host/fonts/truetype/fonts-telu-extra
/run/host/fonts/truetype/fonts-yrsa-rasa
/run/host/fonts/truetype/fork-awesome
/run/host/fonts/truetype/freefont
/run/host/fonts/truetype/gentium
/run/host/fonts/truetype/gentium-basic
/run/host/fonts/truetype/kacst
/run/host/fonts/truetype/kacst-one
/run/host/fonts/truetype/lao
/run/host/fonts/truetype/lato
/run/host/fonts/truetype/liberation
/run/host/fonts/truetype/liberation2
/run/host/fonts/truetype/libreoffice
/run/host/fonts/truetype/lohit-assamese
/run/host/fonts/truetype/lohit-bengali
/run/host/fonts/truetype/lohit-devanagari
/run/host/fonts/truetype/lohit-gujarati
/run/host/fonts/truetype/lohit-kannada
/run/host/fonts/truetype/lohit-malayalam
/run/host/fonts/truetype/lohit-oriya
/run/host/fonts/truetype/lohit-punjabi
/run/host/fonts/truetype/lohit-tamil
/run/host/fonts/truetype/lohit-tamil-classical
/run/host/fonts/truetype/lohit-telugu
/run/host/fonts/truetype/lyx
/run/host/fonts/truetype/malayalam
/run/host/fonts/truetype/msttcorefonts
/run/host/fonts/truetype/noto
/run/host/fonts/truetype/padauk
/run/host/fonts/truetype/pagul
/run/host/fonts/truetype/samyak
/run/host/fonts/truetype/samyak-fonts
/run/host/fonts/truetype/sinhala
/run/host/fonts/truetype/teluguvijayam
/run/host/fonts/truetype/tibetan-machine
/run/host/fonts/truetype/tlwg
/run/host/fonts/truetype/ttf-khmeros-core
/run/host/fonts/truetype/tuffy
/run/host/fonts/truetype/ubuntu
/run/host/fonts/type1/gsfonts
/run/host/fonts/type1/texlive-fonts-recommended
/run/host/fonts/type1/urw-base35
/run/host/fonts/woff/fork-awesome
/run/host/fonts/X11/encodings/large
/home/jali1989/.var/app/org.kde.okular/data/fonts: skipping, no such directory
/usr/share/fonts: caching, new cache contents: 0 fonts, 7 dirs
/usr/share/fonts/dejavu: caching, new cache contents: 22 fonts, 0 dirs
/usr/share/fonts/gnu-free: caching, new cache contents: 12 fonts, 0 dirs
/usr/share/fonts/google-crosextra-caladea: caching, new cache contents: 4 fonts, 0 dirs
/usr/share/fonts/google-crosextra-carlito: caching, new cache contents: 4 fonts, 0 dirs
/usr/share/fonts/liberation-fonts: caching, new cache contents: 12 fonts, 0 dirs
/usr/share/fonts/noto-emoji: caching, new cache contents: 1 fonts, 0 dirs
/usr/share/fonts/tex-gyre: caching, new cache contents: 33 fonts, 0 dirs
/usr/share/runtime/share/fonts: skipping, no such directory
/run/host/user-share/fonts: skipping, no such directory
/run/host/share/fonts: skipping, no such directory
/home/jali1989/.fonts: skipping, no such directory
/app/share/fonts: skipping, no such directory
/run/host/fonts: caching, new cache contents: 0 fonts, 9 dirs
/run/host/fonts/X11: caching, new cache contents: 0 fonts, 4 dirs
/run/host/fonts/X11/Type1: caching, new cache contents: 43 fonts, 0 dirs
/run/host/fonts/X11/encodings: caching, new cache contents: 0 fonts, 1 dirs
/run/host/fonts/X11/encodings/large: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/X11/misc: caching, new cache contents: 89 fonts, 0 dirs
/run/host/fonts/X11/util: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/cMap: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/cmap: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/eot: caching, new cache contents: 0 fonts, 1 dirs
/run/host/fonts/eot/fork-awesome: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/opentype: caching, new cache contents: 0 fonts, 7 dirs
/run/host/fonts/opentype/font-awesome: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/opentype/freefont: caching, new cache contents: 12 fonts, 0 dirs
/run/host/fonts/opentype/linux-libertine: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/opentype/malayalam: caching, new cache contents: 7 fonts, 0 dirs
/run/host/fonts/opentype/noto: caching, new cache contents: 80 fonts, 0 dirs
/run/host/fonts/opentype/porson: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/opentype/urw-base35: caching, new cache contents: 35 fonts, 0 dirs
/run/host/fonts/svg: caching, new cache contents: 0 fonts, 1 dirs
/run/host/fonts/svg/fork-awesome: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/truetype: caching, new cache contents: 0 fonts, 60 dirs
/run/host/fonts/truetype/Gargi: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/Gubbi: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/Nakula: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/Navilu: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/Sahadeva: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/Sarai: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/abyssinica: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/ancient-scripts: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/annapurna: caching, new cache contents: 2 fonts, 0 dirs
/run/host/fonts/truetype/arial-mt-cufonfonts: caching, new cache contents: 20 fonts, 0 dirs
/run/host/fonts/truetype/baskerville: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/crosextra: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/truetype/dejavu: caching, new cache contents: 22 fonts, 0 dirs
/run/host/fonts/truetype/droid: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/font-awesome: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/fonts-beng-extra: caching, new cache contents: 6 fonts, 0 dirs
/run/host/fonts/truetype/fonts-deva-extra: caching, new cache contents: 3 fonts, 0 dirs
/run/host/fonts/truetype/fonts-gujr-extra: caching, new cache contents: 5 fonts, 0 dirs
/run/host/fonts/truetype/fonts-guru-extra: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/fonts-kalapi: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/fonts-orya-extra: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/fonts-telu-extra: caching, new cache contents: 2 fonts, 0 dirs
/run/host/fonts/truetype/fonts-yrsa-rasa: caching, new cache contents: 15 fonts, 0 dirs
/run/host/fonts/truetype/fork-awesome: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/freefont: caching, new cache contents: 12 fonts, 0 dirs
/run/host/fonts/truetype/gentium: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/truetype/gentium-basic: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/truetype/kacst: caching, new cache contents: 15 fonts, 0 dirs
/run/host/fonts/truetype/kacst-one: caching, new cache contents: 2 fonts, 0 dirs
/run/host/fonts/truetype/lao: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lato: caching, new cache contents: 18 fonts, 0 dirs
/run/host/fonts/truetype/liberation: caching, new cache contents: 16 fonts, 0 dirs
/run/host/fonts/truetype/liberation2: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/truetype/libreoffice: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-assamese: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-bengali: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-devanagari: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-gujarati: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-kannada: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-malayalam: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-oriya: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-punjabi: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-tamil: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-tamil-classical: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lohit-telugu: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/lyx: caching, new cache contents: 12 fonts, 0 dirs
/run/host/fonts/truetype/malayalam: caching, new cache contents: 10 fonts, 0 dirs
/run/host/fonts/truetype/msttcorefonts: caching, new cache contents: 60 fonts, 0 dirs
/run/host/fonts/truetype/noto: caching, new cache contents: 2380 fonts, 0 dirs
/run/host/fonts/truetype/padauk: caching, new cache contents: 4 fonts, 0 dirs
/run/host/fonts/truetype/pagul: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/samyak: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/samyak-fonts: caching, new cache contents: 3 fonts, 0 dirs
/run/host/fonts/truetype/sinhala: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/teluguvijayam: caching, new cache contents: 20 fonts, 0 dirs
/run/host/fonts/truetype/tibetan-machine: caching, new cache contents: 1 fonts, 0 dirs
/run/host/fonts/truetype/tlwg: caching, new cache contents: 58 fonts, 0 dirs
/run/host/fonts/truetype/ttf-khmeros-core: caching, new cache contents: 2 fonts, 0 dirs
/run/host/fonts/truetype/tuffy: caching, new cache contents: 4 fonts, 0 dirs
/run/host/fonts/truetype/ubuntu: caching, new cache contents: 232 fonts, 0 dirs
/run/host/fonts/type1: caching, new cache contents: 0 fonts, 3 dirs
/run/host/fonts/type1/gsfonts: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/type1/texlive-fonts-recommended: caching, new cache contents: 0 fonts, 0 dirs
/run/host/fonts/type1/urw-base35: caching, new cache contents: 35 fonts, 0 dirs
/run/host/fonts/woff: caching, new cache contents: 0 fonts, 1 dirs
/run/host/fonts/woff/fork-awesome: caching, new cache contents: 2 fonts, 0 dirs
/run/host/local-fonts: caching, new cache contents: 0 fonts, 0 dirs
/run/host/user-fonts: caching, new cache contents: 2 fonts, 0 dirs
/usr/share/fonts/dejavu: skipping, looped directory detected
/usr/share/fonts/gnu-free: skipping, looped directory detected
/usr/share/fonts/google-crosextra-caladea: skipping, looped directory detected
/usr/share/fonts/google-crosextra-carlito: skipping, looped directory detected
/usr/share/fonts/liberation-fonts: skipping, looped directory detected
/usr/share/fonts/noto-emoji: skipping, looped directory detected
/usr/share/fonts/tex-gyre: skipping, looped directory detected
/run/host/fonts/X11: skipping, looped directory detected
/run/host/fonts/cMap: skipping, looped directory detected
/run/host/fonts/cmap: skipping, looped directory detected
/run/host/fonts/eot: skipping, looped directory detected
/run/host/fonts/opentype: skipping, looped directory detected
/run/host/fonts/svg: skipping, looped directory detected
/run/host/fonts/truetype: skipping, looped directory detected
/run/host/fonts/type1: skipping, looped directory detected
/run/host/fonts/woff: skipping, looped directory detected
/run/host/fonts/X11/Type1: skipping, looped directory detected
/run/host/fonts/X11/encodings: skipping, looped directory detected
/run/host/fonts/X11/misc: skipping, looped directory detected
/run/host/fonts/X11/util: skipping, looped directory detected
/run/host/fonts/eot/fork-awesome: skipping, looped directory detected
/run/host/fonts/opentype/font-awesome: skipping, looped directory detected
/run/host/fonts/opentype/freefont: skipping, looped directory detected
/run/host/fonts/opentype/linux-libertine: skipping, looped directory detected
/run/host/fonts/opentype/malayalam: skipping, looped directory detected
/run/host/fonts/opentype/noto: skipping, looped directory detected
/run/host/fonts/opentype/porson: skipping, looped directory detected
/run/host/fonts/opentype/urw-base35: skipping, looped directory detected
/run/host/fonts/svg/fork-awesome: skipping, looped directory detected
/run/host/fonts/truetype/Gargi: skipping, looped directory detected
/run/host/fonts/truetype/Gubbi: skipping, looped directory detected
/run/host/fonts/truetype/Nakula: skipping, looped directory detected
/run/host/fonts/truetype/Navilu: skipping, looped directory detected
/run/host/fonts/truetype/Sahadeva: skipping, looped directory detected
/run/host/fonts/truetype/Sarai: skipping, looped directory detected
/run/host/fonts/truetype/abyssinica: skipping, looped directory detected
/run/host/fonts/truetype/ancient-scripts: skipping, looped directory detected
/run/host/fonts/truetype/annapurna: skipping, looped directory detected
/run/host/fonts/truetype/arial-mt-cufonfonts: skipping, looped directory detected
/run/host/fonts/truetype/baskerville: skipping, looped directory detected
/run/host/fonts/truetype/crosextra: skipping, looped directory detected
/run/host/fonts/truetype/dejavu: skipping, looped directory detected
/run/host/fonts/truetype/droid: skipping, looped directory detected
/run/host/fonts/truetype/font-awesome: skipping, looped directory detected
/run/host/fonts/truetype/fonts-beng-extra: skipping, looped directory detected
/run/host/fonts/truetype/fonts-deva-extra: skipping, looped directory detected
/run/host/fonts/truetype/fonts-gujr-extra: skipping, looped directory detected
/run/host/fonts/truetype/fonts-guru-extra: skipping, looped directory detected
/run/host/fonts/truetype/fonts-kalapi: skipping, looped directory detected
/run/host/fonts/truetype/fonts-orya-extra: skipping, looped directory detected
/run/host/fonts/truetype/fonts-telu-extra: skipping, looped directory detected
/run/host/fonts/truetype/fonts-yrsa-rasa: skipping, looped directory detected
/run/host/fonts/truetype/fork-awesome: skipping, looped directory detected
/run/host/fonts/truetype/freefont: skipping, looped directory detected
/run/host/fonts/truetype/gentium: skipping, looped directory detected
/run/host/fonts/truetype/gentium-basic: skipping, looped directory detected
/run/host/fonts/truetype/kacst: skipping, looped directory detected
/run/host/fonts/truetype/kacst-one: skipping, looped directory detected
/run/host/fonts/truetype/lao: skipping, looped directory detected
/run/host/fonts/truetype/lato: skipping, looped directory detected
/run/host/fonts/truetype/liberation: skipping, looped directory detected
/run/host/fonts/truetype/liberation2: skipping, looped directory detected
/run/host/fonts/truetype/libreoffice: skipping, looped directory detected
/run/host/fonts/truetype/lohit-assamese: skipping, looped directory detected
/run/host/fonts/truetype/lohit-bengali: skipping, looped directory detected
/run/host/fonts/truetype/lohit-devanagari: skipping, looped directory detected
/run/host/fonts/truetype/lohit-gujarati: skipping, looped directory detected
/run/host/fonts/truetype/lohit-kannada: skipping, looped directory detected
/run/host/fonts/truetype/lohit-malayalam: skipping, looped directory detected
/run/host/fonts/truetype/lohit-oriya: skipping, looped directory detected
/run/host/fonts/truetype/lohit-punjabi: skipping, looped directory detected
/run/host/fonts/truetype/lohit-tamil: skipping, looped directory detected
/run/host/fonts/truetype/lohit-tamil-classical: skipping, looped directory detected
/run/host/fonts/truetype/lohit-telugu: skipping, looped directory detected
/run/host/fonts/truetype/lyx: skipping, looped directory detected
/run/host/fonts/truetype/malayalam: skipping, looped directory detected
/run/host/fonts/truetype/msttcorefonts: skipping, looped directory detected
/run/host/fonts/truetype/noto: skipping, looped directory detected
/run/host/fonts/truetype/padauk: skipping, looped directory detected
/run/host/fonts/truetype/pagul: skipping, looped directory detected
/run/host/fonts/truetype/samyak: skipping, looped directory detected
/run/host/fonts/truetype/samyak-fonts: skipping, looped directory detected
/run/host/fonts/truetype/sinhala: skipping, looped directory detected
/run/host/fonts/truetype/teluguvijayam: skipping, looped directory detected
/run/host/fonts/truetype/tibetan-machine: skipping, looped directory detected
/run/host/fonts/truetype/tlwg: skipping, looped directory detected
/run/host/fonts/truetype/ttf-khmeros-core: skipping, looped directory detected
/run/host/fonts/truetype/tuffy: skipping, looped directory detected
/run/host/fonts/truetype/ubuntu: skipping, looped directory detected
/run/host/fonts/type1/gsfonts: skipping, looped directory detected
/run/host/fonts/type1/texlive-fonts-recommended: skipping, looped directory detected
/run/host/fonts/type1/urw-base35: skipping, looped directory detected
/run/host/fonts/woff/fork-awesome: skipping, looped directory detected
/run/host/fonts/X11/encodings/large: skipping, looped directory detected
/usr/cache/fontconfig: not cleaning unwritable cache directory
/app/cache/fontconfig: not cleaning non-existent cache directory
/home/jali1989/.var/app/org.kde.okular/cache/fontconfig: cleaning cache directory
/run/host/fonts-cache: not cleaning unwritable cache directory
/run/host/user-fonts-cache: not cleaning unwritable cache directory
/var/cache/fontconfig: cleaning cache directory
/home/jali1989/.fontconfig: not cleaning non-existent cache directory
fc-cache: succeeded
It is still the same…