I was imaging last night and just noticed that unfortunately none of my images were saved.
I think I've traced this to change cf3d3b2f submitted Sat Mar 6 04:19:03 2021 +0300
I recommend NOT using any nightlies or software compiled from the latest code since that time until this resolved.
Edit: Jasem just submitted a patch for this.
Don't use code (or nightlies depending on code) that between
Sat Mar 6 04:19:03 2021 +0300 --> Mon Mar 8 11:06:14 2021 +0300