Bug report: As I'm typing other notes are selected at random

Have noticed a few instances of this in the last week; where I open nvUltra, find the note I want, and as I'm typing in it another note is jumped to and I end up typing in that note. I have lost data once this way already as I typed in a note, selected text to delete, and as I hit delete it jumped to another note. Upon going back to the first note undo wouldn't work.

This only seems to happen within a few minutes of opening nvUltra (like at system startup), so maybe it's due to some indexing that happens when the application launches. I have 1,484 notes in my notes directory, if that helps in terms of generating test data.