copy & paste no longer working in apple apps
OS: 10.13.6
copy & paste commands are no longer working in apple apps. (both menu and key commands)
solutions attempted:
quit all apps and force quit "pboard" via activity monitor
power-off / restart computer
restart in safe mode to test behaviour. (copy/paste did not work in safe mode either)
none of these solutions have worked. other key commands working as normal (apple-z, apple-p etc) - also, 'cut' command will cut selected text but not paste
I would be very much obliged if someone has any ideas on how i could fix this issue.
Mac Pro, macOS High Sierra (10.13.6)