Great idea, multiple issues

I have to say that idea for this app is great. I work in construction and its perfect for quick trace sketch over plans or pictures. Set of tools is good, layers are great.
But it falls very, very short on multi-gesture vs palm rejection. It actually creates unfixable problems. I have ipad pro and using Apple pencil. Its kind of works if you only need to do 10-15 quick lines and not many layers and be careful. I have one site plan that is more involved and when I place my palm on the screen it actually changed scale of trace vs original plan (I did not notice when it happened), but I could not find the way to fix it. Not good. 2 hours of tracing are wasted. I figured ok - dont use original base layer, but then similar thing happened with labels that I created as separate layer and these got misaligned (scale-wise) and I cant find the way to fix it. Seems that app got cooked quickly by developers and never got tested by actual architects construction people for sustainability for bigger drawings, sketches.
Im glad I did not purchased anything from these people as Ill be doing my tracing in some other app. This one just does not work as long-term serious tool.

FromNick about Morpholio Trace - Sketch CAD