Copy and Paste no longer working after updating to Illustrator 30.4

Hello ​@carolk67692495 

Sorry for the late response. I hope the problem is resolved by now. If not, would you mind trying the suggestions shared in this community post (https://community.adobe.com/announcements-651/why-copy-paste-breaks-in-illustrator-and-how-to-fix-it-1624301) and let us know if they help?

Looking forward to hearing from you.
Anubhav