We have been using Grafana for 2 yrs and this is our first time to experience this. “Save dashboard” → “Save” doesn’t change anything and takes me back to “Unsaved changes” dialog. We could only “Discard” or “Cancel” the change, and Versions history doesn’t reflect the latest changes.
We don’t even know if it’s related to our recent upgrading it to 6.7.3 or because the server running it ran out of disk space a while ago… We don’t update dashboards very often so we don’t really know when it started to happen.
I saw this log from systemd but again, no changes have been made.
May 06 17:00:29 monitor-sing grafana-server[1224]: t=2020-05-06T17:00:29+0000 lvl=info msg="Request Completed" logger=context userId=1 orgId=1 uname=admin method=POST path=/api/dashboards/db status=400 remote_addr=1.2.3.4 time_ms=4 size=153 referer="https://my.example.com/grafana/d/8vyoJbGiz/status-dashboard?panelId=4&edit&fullscreen&orgId=1&refresh=30s"
