Additional meeting and call-related features and issues within Microsoft Teams for business
More info..
I switched my org back to the default one it creates and clicked join meeting. The app asked me if I wanted to switch to the org "xxx" of which I am a guest of. I clicked skip and logged into the meeting and the deck slide works. If I switch to the "xxx" org it doesn't work.
Seems to be an issue with "Guest" accounts in a Team. Bit weird how an "anonymous" login gets to see this deck but an added "Guest" doesn't if it's a permission thing..
Anyone from MS with an idea?