Dragging key signature from custom palette to score leads to crash
Create a custom workspace that includes the Atonal key signature.
Drag the Atonal key signature to the score
Result - crash with no warning.
Note: double clicking to add key signature does not cause a crash, but cannot be used to set key signature in a single staff as is the most common use. Adding this from the advanced palette does not cause a crash, which can be applied to a single staff.