ZwiftApp keeps open after quitting Zwift. "Checking For Updates" message

I have exit Zwift some minutes ago, but ZwiftApp task still running and i can’t figure what is their current related process in Mac OS 10.10.5 (Yosemite). Is there a process that we can stop in Activity Monitor to fix this and let me start Zwift again?

The apps stops at the “Checking For Updates” message and it can be there for hours.

Please submit a support ticket for this: