Hi again!
I just found out today that corporations can enforce a requirement for a minimum version of Zoom clients.
Given that, if your corporation sets a minimum required version that is higher than the one available in the SDKs (say, 4.5.6 when the current SDKs version is 5.4.5), then the application will never be able to join until a new SDK version is released.
I’m still not 100% sure but that may be the case in our corporate account, @andrez could that be your case as well?