Erg mode problem in zwift workout

I did Zwift Academy workout 4 yesterday and it started as it should, but when the workout went in to the next part after 3 min the erg mode didn’t react to the change. The text said ride at 175w, but the red text with actual watt was stuck at 150w.

Tried several times with the same result. The problem got solved when I shut off my kickr climb. I have read that the climb doesnt work during workouts, but i haven’t heard that i causes errors/bugs.