It doesn't hurt anything to receive on all MIDI channels, but I just wanted to have you try it, because at a glance, I don't see any issues with your setup, so I don't know why you aren't receiving messages from the keyboard. Nothing has changed in MobileSheets itself related to MIDI, so I'm not sure what to recommend. You aren't the first user to experience this (https://www.zubersoft.com/mobilesheets/f...10250.html), but some users have no issues at all. In that thread, pawlikp100 said you have to click twice on the item in SongBook in order for the MIDI messages to be sent.
Mike
Mike