In Mobile, I have noticed on a number of occsions that after entering info in a note window that if I immediately check the note pop-up, the just entered info is not present in the note...that is, it is gone.
I think this occurs due to there being a lag in the write process. I have noticed that the top right has a place where the status is displayed: Last saved __ ago; Saving...; etc. If you close the window before that report says "All changes saved"--and that can take a few seconds--then you may be truncating your precious effort. Jsyk
Fwiw, I have never noticed such a lag in the desktop app...so far.