I'm running Logos Mobile on my Samsung Galaxy Tab S7 and continue experiencing significant typing issues when editing my sermon with my system's keyboard. I have experienced the same issue with Samsung's on-screen keyboard as well as Google's onscreen keyboard. I can only type 2 and sometimes 3 letters before Logos moves my cursor backwards to insert text in the middle of previously typed text making a horrific mess of the sermon. If I type just enough for the keyboard to make word suggestions, I tap on the word and Logos inserts the word in the middle of the word I am trying to auto-complete or it amends the new word to the end of the previous word with no space.
It has been doing this for quite some time, I think it goes all the way back to when Sermon editing on Android was released. when experiencing this issue, I open another app and can type perfectly. When I connect a blutooth keyboard, I can type without issue.