I can confirm for this particular score, it's because this is a piano instrument rather than one actually designed to be used with one bass clef staff. Change the instrument to something that is normally bass clef and it shouldn't happen. Or just change the clef.
Comments
Cannot reproduce, can you share the score you're having trouble with?
Here is one of the files that are a problem
I can confirm for this particular score, it's because this is a piano instrument rather than one actually designed to be used with one bass clef staff. Change the instrument to something that is normally bass clef and it shouldn't happen. Or just change the clef.
See #272255: single piano stave with bass clef turns to treble after property edit