Dynamics in alternate endings play incorrectly (midi out)
See examples here (including score file):
A dynamic in the prima volta is also active in the seconda volta, when it should not be, causing subsequent measures (absent another dynamic) to be played incorrectly. This is significant in that it affects midi output generated.
Placing a dynamic in the seconda volta (e.g. pp in the example) causes it to be correct, so a workaround is easy.
As of 4/13/17 this was in master (3.0) as well as 2.1rc.