Today I heard back from Zwift support. They have acknowledged that this is a widespread issue and that their development team is working on a fix. In the meantime they suggested and shared the instructions on performing a downgrade of the Wahoo KICKR firmware. I was able to successfully install the older version and confirmed it fixes the problem. Instructions are below:
- Unplug the trainer for 10 seconds
- Open the Wahoo app .
- Make sure the Wahoo device is powered on.
- Click on the Wahoo device when it pops up (Blue Button).
- Wait for the Wahoo Device to connect, once connected tap the blue button to connect. At the next screen at the top tap 10 times on the little black icon of the Kickr to bring up the firmware update list. Choose the previous public firmware version.
- Allow the update to finish.
Thanks to all who opened tickets and contributed to this forum to raise awareness.