Bugs?

Im very happy with this new update. The new brushes and tools are great! But, ever since I got the update, my device has been unbelievably slow and there have been some problems within the app. If I click undo, it will undo either the whole layer or something I spent like half an hour on which is very inconvenient. Now the second (and hopefully last) bug I ran into was a message bubble popping onto my screen when I click the edit button to edit my drawing. It says:
Error:
Detected damages in a vector file. It needs to restore with playing. It takes some times. May I start?

and tbh, Im uncomfortable with that. Please fix them because Ive been waiting months for these new tools!

Victoriaboboria about ibis Paint