Not able to join meeting when the host tried to join

[Haririth4]

I have a scenario where a zoom meeting was created with email containing a subdomain . When the user tried to log in with alias domain it showed an error saying `Waiting for Host to start the meeting` now the user logged in to zoom app email used to create the meeting but still faced the same issue. The user tried to login and logout multiple times and still faced the issue. The meeting was listed in the Upcoming meeting tabs for both the email accounts. How can this be fixed?