Copy and Paste within the same document not working

[showalters]

This just started this week (w/o March 29, 2021).

When I copy any text in any document, then try to paste that text in the properties box (title of document) or when running 508 compliance and doing fixes (Alt text, title of document), it won't paste. I have to paste it into a notepad or word document, copy that then I can paste just fine.

So it is copying from the PDF (no security issues), and my PC will paste it in OTHER documents, but it will not directly paste it to the PDF I copied it from.

I'm using Acrobat Pro DC version 2021.001.20.20145 on a Windows 10 Enterprise machine