Not working – Clavinova connection to Simply Piano

MIDI cable is connected “Out to In” and “In to Out”

Host select is “MIDI”

Below: C note is recognised

Below: C note is recognised, but previous C note still shows up on app

Below: Middle C not recognised

On start-up App recognises MIDI connection

As the problem looked intermittent we also tried adding a lightning power cable to the adaptor just in case it was a signal strength problem. No luck though (SP doesn’t recognise the MIDI connection at all)
And finally on video….