Frame progress lost, undo button bug

Aryssa 2 years ago in Android 0

Worked on one scene for days but when pressing the undo button too many times too fast the app restarted and I lost ALL my progress on that one frame, please help I want my hard work back, is my work gone forever, is there some place to look at my profress history?, does it only save once you leave the project? Can we have a save button option anyway, it feel safer knowing your progress was set in stone. I never know when it saves properly and its frustrating. Sometimes the app kicks me out of my project, is it bcus it cant handle the amount of memory Im making it save?? I use a samsung tablet, please help this is really dissapointing me and stopping me from completing my projects.