Only in hookpad projects, if a note spans over a key change, it will have the same pitch when played (as it should) but is displayed incorrectly (e.g. the C after the key change to Db major should display as pink but instead it displays as pink-purple stripes)
This bug seems to have returned. It’s been doing this for a while, so it’s probably not a recent change causing it.
In my quick testing it seems that every mode change has some mismatched semitones, including modal interchanges and between relative modes, as seen here. Key changes that retain the mode do not have this behavior.