May be Heatmap problem, maybe not. I have Samsung J7 (piece of junk, I know.) this happens multiple times every short text: if I try to delete /erase the keyboard goes crazy. Won't delete at all. Any typing produces letters not related to what I am typing....?? Have to back out of the app completely and find the Draft to start typing again. So crazy. I like this app for various reasons but this problem is a deal breaker. Is there a fix? Anyone else have this problem?