>>29-31

これかも↓
http://www.freefalcon.com/forum/view_topic.php?id=15383&forum_id=2

対策↓

1. Setup Btn Assignments in Game Controller Setup - > All Okay, Save it!

2. Fly Mission, then goto controller setup again -> All seems to be messed up

3. If you load the previous saved profile, it doesnt help but seems to mess up the saved profile as well

4. If you leave Falcon without touching anything instead and restart, the previously
　 saved button assignments are restored and work in the setup screen.
　 They continue to work if you enter and exit missions just as one would expect.

X52持っていないので、当方では検証不能〜