Hello everyone,
I usually had ctrl+shift+num2 as a shortcut for capturing a window.
Specifically, shift + num (except NumLock) is not accepted and it just saves num + (n) (n for whatever number you choose).
Since a few weeks this combination does not work anymore, on any action available in spectacle, as well for shortcuts inside the settings (e.g. opening Dolphin).
Sadly, I cannot recall if this issue came with 6.7 or if it this has happened before that already.
plasma 5 (fwiw)
assigning Meta+Num(key) to a shortcut
numlock ON numlock OFF
Meta+Num+8 Meta+Num+Up
Meta+Num+4 Meta+Num+Left
Meta+Num+5 Meta+Num+Clear
Meta+Num+6 Meta+Num+Right
Meta+Num+2 Meta+Num+Down
Meta+Num(n) still works. It’s just Shift+Num(n) that has ceased working 
interesting.
on my install Shift+Num(key) give the in numlock OFF column results regardless of the numlock status.
so Shift+ works for me but i get the directional notation rather than the (n) notation when the numlock is on.