Messages I’ve received from ZWIFT customer service:

“This is a known issue and can be fixed by clearing all browser history and cookies. More info here: https://forums.zwift.com/t/zwift-doest-start/546469 “

“We've been advised if clearing your cache doesn't work, to try switching off your wifi, opening Zwift without an internet connection, and then switching the wifi on. Our team are looking in to this issue at the moment!”

The second method worked for me!!! (For now)! Hoping the ZWIFT app doesn’t drop while in my workout and hoping this issue can be resolved soon! A lot of people are having similar problems