Whenever I pull up my editing mode screen this error message pops up saying "WIM has been blocked from an action only available to the Blizzard UI. You can disable this addon and reload the UI." So I disabled it then re enabled it & checked curse forge to see if I needed to do any updates & everything was updated and it won't allow me to copy the players name.

I was not able to reproduce this on the PTR. Could you confirm if this still happens when WIM is the only addon loaded. It is possible that another addon is causing a taint and spreading it.

leave a chat window open and enter to edit mode, after that is a permanent issue until i restart wow

No addons except for buggrabber/bugstack and WIM. Turned off hide windows on Escape so I can keep it open in edit mode.

This is on PTR.

no addons, only wim same issue
can you test on retail?

I don't have retail installed atm. I have PTR installed so I can make everything work for the new expansion (i don't play retail and am not sure if I will continue on classic). If its working on PTR and not on Retail, its most likely an issue that blizzard has since resolved and should hopefully make its way to live.

If the only time you have this issue is within editor mode and while chatting, it doesn't seem like an issue that would affect many people until live is updated and could be resolved with a simple reload ui when you are done modifying your UI.

Respectfully, if it can be reproduceable on PTR, then its' likely going to be a long term issue that needs to be figured out, but as of now, it seems like a temporary issue and based on its impact, doesn't seem worth the headache trying to track down the cause.

i had the same glitch

I was able to reproduce it. It appears to be an issue with DropDownMenus. I implemented the usage of LibDropDownMenu instead of using blizzards UI directly. Let me know if this update resolves your issues.