I use Xodo to read and annotate pdfs, both scholarly articles and books, and students' work which I need to mark. Unfortunately, when using the pencil on my iPad Pro 10.5 Xodo often jumps from annotating to selecting, and places the last few letters I wrote into a blue square. No idea why it does that, but it's annoying. Could this be turned off so that when using the pencil I'll stay in writing mode? Thanks, Gerhard