Crashing and loses all progress on a layer [IOS]

Swift Blue 10 місяців тому в iOS 0

Ipad used= Ipad mini 4 

Theres this problem where i crash when i use the paint brush tool alot, im usually fine with it since flipaclip seems to crash alot, but losing my 2-3 hour painting background progress is too much, i dont know how i dont know why but sometimes when i crash the progress within the layer i was working on also poofs away, leaving me with an empty layer to rework onto again, Please fix this.

I got some photos; somehow the thumbnail still had the color.