Chord symbol collisions not handled well
While I realize autoplacement can't be expected to produce perfect results, this particular case is common enough I'd like to see if we can improve it.
1) empty score
2) add chord symbol to a measure
3) add volta to same measure
Result: chord symbol is moved above volta. I believe in general the volta should be move above the chord symbol, although I'm willing to be convinced otherwise. More significantly, though, if I set the default vertical position of voltas to be high enough that there is no collision (eg, -6sp), then the chord symbol kind of randomly flips between above and below the volta as the score is edited.
Disabling automatic placement of voltas seems to be a possible workaround.