Gradient buttons causing signal loss

Any help please.
When I push positive incline button on kickr bike it drops signal and then 5 secs later is ok. It only happens on positive incline. If I hit negative incline button it decreases but the second I hit positive incline button it drops signal, switches off for a second and then picks up the signal again. So it moves incrementally upwards but drops signal each time so getting it to a positive incline takes forever.
Any similar experiences or any suggestion.
Been a long time wahoo owner so have done every possible troubleshooting scenario and I am now essentially stumped.

Faulty button causing radio interference?

I think you should reach out to Wahoo support. It doesn’t sound like Zwift would be the root cause.