[Zubersoft]

Can you please test the MIDI connection in a standalone app (such as this one https://apps.apple.com/us/app/midispy/id1444652196) to see if the problem is with the WIDI Master? I have a WIDI master myself and I can use it just fine with a mio XM, but it doesn't work at all with my Yamaha S90 ES. So it really depends on the device you have it connected to.  You didn't mention what type of keyboard you are plugging the WIDI Master into. Also, did you make sure to update the firmware for the WIDI Master to the latest version? This is the app you can use to update the firmware: https://apps.apple.com/app/widimaster/id1530167387

Mike