I have this happen to me from time to time. Its usually after either an IOS update or a Zwift update.
sometimes it goes away after a few minutes, or a few hours. Never had it last more than 24 hours though. I know I am not offering much help but the IOS platform is usually very solid but when its not its very difficult to troubleshoot.
I’ve tried uninstalling/re-installing for 3 days now. Not sure what else I could be doing here.
Bit disappointed to not hear from the support team - Zwift was very strongly recommended to me and I wanted to try to for the Tour de Zwift but I guess it’s not going to happen.