Harley Benton MP100 not working with toaster anymore?

I have used the MP100 successfully earlier on, but a while ago I updated the toaster to a recent-ish version (7.1.5.15526), and noticed today that the MP100 does not switch anything in Perform mode. I do get one message when switching off effects, but nothing else happens, so there is MIDI connection between them. I've booted the MP100 in "Kemper mode" by holding the "3" button down when starting the controller, but still nothing happens in any of the 24 banks when pressing Up/Down or A, B, C, D.

Anyone else have similar issues?

Oh damn, seems the MIDI Out plug on the MP100 is flimsy! Nudged it a bit and then it worked again