Title bars invisible

Hi! I’ve installed KDE Plasma on my CentOS machine and it was working fine untill the first reboot, after that, the title bars from (most) of my windows turned invisible. The actual buttons are still there, but not visible anymore.

System Info:
KDE Plasma Version: 5.27.11
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.9
Kernel Version: 5.14.0-513.el9.x86_64
Graphics Platform: X11

Hardware
Graphics Processor: llvmpipe

This might be related. Llvmpipe means software rendering as opposed to using the GPU.

do you have a dedicated graphics card?

No sadly, this is on a VDI environment.

What about a ‘fake’ one, enabling 3d acceleration and/or OpenGl support on your VM?

Are you using any custom window decorations or anything, possibly using Aurorae, maybe?