Zoom-Meeting

Hey Everyone.
I ma using zoom webbooks for listing of event . currently on my app setting  unable the meeting join and left event.
and also enable the rejoin option for participant  in my zoom application.
i am facing the issue when host removed user from meeting after some time received event of join user (user that removed from host ). cannot understand why this happened .No request from participant to joined meeting after host removed  the participant.
Please help me on this case why webhooks behave like this. 
Thanks