I've just bought a New 2T and following about 20 minutes on Zwift in erg mode on the first ride, it developed a really weird issue making it unusable. The resistance wouldn't solidly engage. I start pedalling and the resistance will just randomly cut in and out in an uncontrollable manner, making it impossible to ride. The thing is it does this both when powered and un-powered, see this video:
https://youtube.com/shorts/sz6ex7Co2LQ?feature=share
I've contacted the reseller and have a replacement arranged but would like some reassurance that this isn't a common issue, and that my new unit won't do the same. Any ideas what it could be?