Lost keyframe info

We just opened up a project we did in Toon Boom Digital Pro, about 6 months ago. Some of the scenes have lost all there key frames, some have not. All the mouth shapes are intact. Does anyone have an idea as to what might have happened?


Make sure to post this in the Digital Pro forum. As for the reason why this happened I can’t quite say. How were the project backed up?

A Digital Pro file is actually a text file so unless someone goes open the file and remove the pegs I don’t really see any reason how they could mysteriously disappear.