Wattage problem classic trainer

My wattage went way up, in error on my classic trainer. When I’m at say 120 wattage, it’s now showing 300 watts. Can ride faster to 1200 watts.
I presume it’s a problem with the new update. My friend on zwift also has same problem. Our FTP went from 235 to 440. Not going for our training plan.
Hopefully someone will have a fix soon. If you have solution, please help. Thankyou.

Please refer to this thread: March 2021 Update issues