Holding down "option" on the keyboard and then dragging a graphic or text box to copy and paste where you'd like it to go no longer works. The cursor changes as if it's going to copy/paste, however, it will just drag the original graphic/text box without copying it. I have to physically hit cmd + c and cmd + v and then it will paste wherever it wants to go in the document to get something to copy and paste. This is really frustrating when trying to design documents with a lot of the same elements in different formats. This has been an issue since updating to InDesign 2021 (16.1)