Set up Plus 3 Expression device

It appears that, after updating to Cubase 15 pro, I cannot use my CC11 expression device ‘Plus 3’ with my NI S88 MK2 keyboard, as I did before. i.e. it ‘moves’ as it should, but on the wrong track (Vocal Harmony) ). I think that it is to do with MIDI channel selection, but despite wasting many hours trying, I still haven’t cracked it.

Using Komplete Kontrol, my small project includes a piano track, a vocal track processed with Waves 8 part Harmony, and a Symphobia Strings voice which I want to use with the expression device.

My Studio SetUp looks OK but I’'m not sure how I should set the MIDI ins/outs channels.

My interface is the UR 242.

Cheers Keith