All of a sudden I seem to be unable to merge any merge request from the Gitlab web interface. The green Merge button is there, and when I click it the busy spinner appears. But after that nothing. No error messages or anything, and the merge requests stays open. Fetching, pulling, pushing etc. all works normal as before.
I’m not sure if it is related to it, but I updated Gitlab from version 8.17.2 to 9.2.5 last week. Update to 9.2.7 today made no difference.
I’m running Gitlab on a Ubuntu 16.10 server.
Can anyone give any suggestions on how to troubleshoot this? Any logs I might examine to see if there are any errors hidden inside?