FL looses track of it's place and timing (in other words it'll run past the end of the song and never stop or loop; restarting the song causes it to start somewhere other than the beginning; no sound ...
FL, no idea when or why, I'm just working with a sample then when I close edison the GUI has completely frozen. But only sometimes...
It also crashes when it closes.
EDIT:
When I rescan midi devices
Would reinstalling ...