Here is a video of the issue https://youtu.be/Shsuq6OiXBE
I have a project "EAG" and another project "BUG"
I recently updated the filter for the EAG board so that it would also show issues from the BUG project.
When I move an issue from the BUG project from the backlog into the sprint it says "Selection successfully moved" and then I refresh the page and the issue is back in the backlog.
Here are my settings for EAG board
