Pictrs randomly returns 404 on old images - eviltoast

Hello all, I’m the instance admin over at lemmy.team.

I’m pretty new to lemmy and have been trying to manage the server over there and will eventually open things up when I’m confident of my abilities to maintain it.

I was doing some general server maintenance, which included updating pictrs to 0.4.3. Whist it appeared to work OK, a load of images, but not all just started randomly returning 404 errors.

All the images still appear to be there and going forward I plan on using object storage, but not quite there yet.

Have I broken something? I did try and downgrade again but still get the same issues. I don’t understand enough about pictrs to debug it. I did try to set the folder permissions again just incase something broke there.