Based on my tests if an accidental that goes over a line break (manual or automatic) is high or low enough that it causes the note staff to expand vertically, then it gets messed up because the note staff doesn’t expand vertically after the line break
@chris @dave @Ryan happens on theorytabs as well such as this one:
https://www.hooktheory.com/theorytab/view/kevin-macleod/truth-of-the-legend#chorus
Identified the cause of this, we’ll have it fixed in the next minor update