When using the "Stream (Preview)" and following the information from Stream control (based on SharePoint) in Power Apps (preview). It works when editing in the studio, but once you publish and try to run the app as an end user, it will not load. I've tried on various stream videos with different permission sets for the video and still get the same issue.
Thanks, mate! I've also submitted a ticket to Microsoft. I will keep you posted as well if I hear from them first (They replied they'll get back to me within 48 hours)
The same thing just happened to me today.
Console shows many cross origin violations (from same tenant) all of a sudden. Works in PowerApps but no on publish.
Will keep you posted on any progress.
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