OK, I've literally reset, re-installed, re-updated, re-flashed, re-paired, and restarted every device in this chain a dozen times now. Its sort of working now, but I'd still say something in the chain is buggy.
I can now get into my presets on the mobile device, but as soon as I go to edit one, it says "Hardware not responding" and the FX100 disappears from the device list. The phone and FX100 never lose Bluetooth connectivity, but the app says that no device is located. So I have to quit the app, restart it, and let the device sync again. Then it starts all over and I lose connectivity again when I go to edit.
I'm POSITIVE I have the latest versions of every possible software and firmware. And rebooting, resetting the box, reinstalling the app, re-pairing, etc is not solving the problems. I get the same issues after every evolution of re-doing everything.
Day 5 and I've yet to edit a sound on the iOS app...