I have only briefly researched, but did not find the topic.
It seems that in staves with multiple lines the clefs are positioned incorrectly. For 5 lines correctly as G2 clefs, for 6 between lines 2 and 3, for 7 as G3 (n+1/2 each) and for less than 5 lines n-1/2 (for 4 lines between 1 and 2) and so on. The notes themselves are always displayed correctly for a G2 clef (e on line 1).
It would be practical if there were a clef editor or if you could specify a reference line for all clefs in the instrument editor. However, the clef position can be corrected via the music symbol editor.
Am I doing something wrong with the settings in the instrument editor that would affect this behavior?