Cannot rejoin webinar unless using a webinar token. Not even as an atendee

Greetings, @Wolf_Isaac,

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Description
My application is unable to rejoin webinars. I believe my issue might be related to other posts such as these:
webinar-rejoin-not-working-after-updating-user-to-panellist
webinar-rejoin-not-working-after-updating-the-user-to-panelist
These users describe the error occurring after they leave as a panelist, however in my case, even if I leave as an attendee, I am unable to rejoin.

What DOES work, is using the meeting ID and a webinar token, copied from the panelist invitation email. Providing both of these to JoinParam4WithoutLogin, allows myself to rejoin successfully.

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