Had the problem before, then fixed it by using ant+ instead of bluetooth. But since a week or something the risistance changed on my direto in (real world) zwift. Can’t even put out 400 watt’s at 50-11 at 100 rpm.
I see you submitted a ticket, so I replied there, but I’ll include my response here as well for everyone else experiencing the same.
I had a look at your account, and your power source and controllable trainer are using a mismatched configuration. Be sure that the Elite FE-C option is selected for both Power and Controllable Trainer.