I will post it for the first time.
I am using the REST API in ZOOM.
From 22:00 on May 14th in JST, When using the user created with [custCreate] and accessing [start_url] with host privilege, there is a problem that will be redirected to [join_url].
As a result, the host state of ZOOM can not be established and the meeting may not be able to be made.
Also, once that user is redirected to [join_url], it seems that it will be impossible to start the meeting as a host after that.
For this trouble, I checked the log of the browser and confirmed what is happening. From the beginning of April when I began using REST API until 21:00 JST on May 14th, this kind of obstacle did not occur, but as mentioned above, it started to occur after 22:00 JST, We have not improved it now.
It does not necessarily mean that failure will occur for all users. As far as I see the database and the problem reports from the customers, I feel that the failure has occurred about 1/3 of the users created by [custCreate].
It is helpful to tell me what problems are occurring or what we should check or improve.