Here are the steps:
- Open the Terminal app on your Mac (Applications > Utilities)
- Now, we will first delete Clipboard sharing and then enable it again. Here is how:
defaults delete ~/Library/Preferences/com.apple.coreservices.useractivityd.plist ClipboardSharingEnabled
- Now, copy and paste this code and hit Enter:
defaults write ~/Library/Preferences/com.apple.coreservices.useractivityd.plist ClipboardSharingEnabled 1
- Now check if copy and paste is working.
https://discussions.apple.com/thread/254811288?sortBy=best