(bug report) Opentoonz deletes frames for no reason

[GoatBoatAfloat]

So today Opentoonz decided it would be an absolute hoot to delete 20 frames for no reason!
Aye, a right hoot. Thankfully I could restore them because of the backup files created (THANK YOU whoever programmed that), but I'm pretty sure that should not be happening... That was a good few moments of panic for the day haha.

For additional info, yes I am completely certain I did not delete the frames. They still showed in the level viewer, but when clicking on the thumbnail, would show no drawing. No corresponding png file in the folder either. Just gone. It left some of the frames of that level still in tact, but most of them disappeared.

Hopefully backups will always be generated, but thought this was an important bug to report.

 

[DarrenT]

What was you doing when they disappeared?

Without that information, it doesn't really help.

Which level type was you drawing on? I'm guessing standard raster.

Where did you save your scene? In the sandbox or in its own project?

How did you create the scene. Often when I've seen these kinds of reports, the problem was creating new scenes without saving them first. I always recommend creating project & scenes from the startup popup to help with this.

Have you got any other details that might help?

[GoatBoatAfloat]

I believe I was drawing more frames to the level. I think I was drawing them on another application and saving them in, so reflecting it is possible I was too hasty saving them maybe while the scene was saving and it corrupted the level... A possibility, in which case entirely my own fault haha. Even then, I don't know why the frames I wasn't working on disappeared.
Yes, it was raster.
Likely I had gone to "new scene" and made a scene from there, it saved with all the other scenes in the project. I made the scene a few days before I had the frame disappearing issue and I think this is the only time I have had this issue so far...