I updated my CC to 2019, but the designer hasn't. She's still using 2018.
I had checked out some assignments from a indd file in the intra server and checked all in when I was done.
Before notifying my designer she came and asked, "how were you able to work o the assignments when I was working on them?"
She was working on the same indd file, from InDesign, with all assignments checked out.
And yet, when I checked all in, she got "update" signs next to the assignments. And weirdly, when she updated them all, they updated fine with out any crash.
Funnily, assignments in her InDesign were still checked out, and my InCopy showed the same files' assignments were still available for check out.

So, I'm guessing it's some sort of a bug.
Anyone else had that experience?