I'm really sorry to hear that!
I can't seem to repro the issue though, might need some more information.
I tried to make a copy of a document inside a shared folder, or rename a document inside a shared folder, and that worked correctly (is that the case for you?). And after that the context menu over each document is working fine.
Am I missing something? I can post a video of me repro'ing it if that helps. I might be missing something.
Also, I spotted an error coming from your client, so we can debug from there as well.
Just want to let you know that we take data loss very seriously. From the looks of it, no data is lost, but the UI is acting funky for some reason (most likely an edge case since I can't seem to easily repro the issue).
Sorry for having to go through this... could you tell me if this is happening on web or the mac app right now? If it's the mac app, what's the version of the app? You can do that by choosing the "About" option in the main menu (menu icon at the top right corner). I just want to make sure we're working with the same version of the app so it's easier to investigate the issue.
Sorry again for the inconveniences.