I'm getting Error 500 when I try to move issue from one next-gen project to another.
I've tried with different issues (open, closed, stories, tasks) and I'm always getting the same "Error 500".
Update: this also happens when I try to use "Move" function to convert a Story to an Epic within the same project. It happens in newly created projects too.
This is the screen I'm using to move the issue, nothing complicated:

Any ideas how to debug this?