Power Way Off in Zwift Only

My setup is Wahoo Kickr Snap & AppleTV and I also have a rear hub power meter so I know when my calibration is off… usually. For about a week, the power is WAY off in Zwift. Like 20-40w lower than my power meter. When I calibrate in the Wahoo app and do a test workout, the power is accurate, so it isn’t an issue with the Kickr. I also tried deleting and reinstalling the app, calibrating in Zwift and adjusting the trainer tension but nothing seems to help. Totally bizarre. What else can I try?