Input pretty much sorted now, thx for all the help! Not getting any output now, but this one is the same in the demo app. Tried on a couple of different synths and the same. Running demo on iPad works as expected.
I’ve connected Bluetooth MIDI to a Yamaha MD-BT01 and see the same behaviour - input ok,output nothing. Tested Bluetooth MIDI on iPad and both in/out work.
to make sure the USB cables are working properly.