Kickr Bike Shifting Problem

I am continually getting a problem with the right shifters stopping working. I had a v1 bike for 2 years, no issues. Then the problem started. Wahoo provided me with (if I remember), two replacement v1 bikes and two sets of handlebars. Same issue. Eventually they sent me a v2 bike and all was well until today and the same problem-right shifters (and buttons) stopped working.
The firmware is up to date, terminals cleaned, I’ve tried all the different ports, still no joy. The left shifters work in all ports, the right shifters don’t work in any.
Anyone with a similar problem able to offer a solution? I’m at my wits end.