Ctrl V Stopped Working (Tried Almost Everything!)

Hi, my Ctrl + V shortcut has suddenly stopped working. What works: L Ctrl: ✔ R Ctrl: ✔ C: ✔ V: ✔ L Ctrl + C: ✔ L Ctrl + V: ✖ R Ctrl + C: ✔ R Ctrl + V: ✔ L Ctrl + T, L Ctrl + R, L Ctrl + A, ...