Garageband MIDI not working at all
I have a very specific problem that's been making using GarageBand impossible lately. I have a Yamaha DGX-660 electric keyboard plugged into my Mac through a USB type B cable, and up until about a week ago I was able to record MIDI just fine. Now, whenever I press a key on my Yamaha a note is recorded AND whenever I release a key a note is recorded. Then after a bit, no sound is recorded but GarageBand still shows what chord I'm playing (in the information box with the tempo). GarageBand is telling me 2 MIDI inputs are connected when there should only be one, but Audio MIDI setup says that my keyboard is the only MIDI source detected. I've tried changing all cables to between my keyboard and computer, rebooting my computer, uninstalling and reinstalling GarageBand, quitting all other apps with any sort of MIDI, and nothing has worked so far. Any help is appreciated!
MacBook Air