This is odd. At some point yesterday I was able to copy/paste without issue. This morning, it's back.
Just expanding on the problem, which is again across ALL platforms - here is a specific problem in Excel. I can not copy formulas....and the only Special Paste functions are Unicode Text and Text (2) when there are normally 18-20 options. Very odd.
Interestingly, I can still copy by dragging a formula to an adjacent cell. Again, its across all platforms....I can only copy text within or across any program, window, browser, etc.