Quite common for the motherboard to have problems. Do a full delete and reinstall if zwift. Then try to run the trainer under myetraining app and run through the levels. Then run zwift and see if it works.

Remove the cover for the motherboard and take a video of the stepper motor. It should reset itself and.move whenever it powers up. If it doesn't then send the vid to elite and they'll send you a new board.