Sensitivity Labels, MP4/AVI videos and an unknown error
Hi,
We recently enabled sensitivity labels for our files and sites. Since doing so we have run into an error where MP4 content no longer works when shared externally, the content can be shared via OneDrive or SPO but when an external party tries to open it they get an error saying 'Something Went wrong', Error type: 'Unknown Issue".
The sensitivity label on this content is Public. Office documents and PDF's work as expected when shared externally, we have isolated the issue to video files. Anyone else come across this?
Happens on content that was there prior to enabling labelling and new videos uploaded.
Edit: I am not sure what's going on but it turns out it was related to Conditional access requiring Authentication strength. I don't know why it only started after labels were applied and unsure how it only applied to video files but its working once we excluded guests from the main MFA policy and made one without authentication strength options enabled.