the app is pretty much bugging out, and as you say, unusable. Behaviour is all over the place
(by the way, how the hell does the bulleted list feature in this editor work?)
parents are becoming notes, notes are becoming parents, pasted text in a note is appended to the parent title, I can’t delete notes inserted above parents, popup messages coming over the wrong item (unbookmark/bookmark this list coming over the zoom in button).
this is happening to some extent at least on the browser version as well.