Microsoft have resolved the issue. Recordings with shared powerpoints in Teams is now working again.
Scope of impact: This issue may have affected any meeting recorded during the time of this event.
Start time: Monday, March 22, 2021, at 7:00 PM UTC
End time: Wednesday, March 24, 2021, at 12:00 PM UTC
User Impact: Users may have found that PowerPoint content being shared within Microsoft Teams meetings was not being recorded.
Final status: MS have identified that impact was caused by an authentication issue, introduced in a regularly scheduled update to their content sharing service. They have reverted the update, and confirmed using their internal reproduction of the issue that impact has been mitigated.
Scope of impact: This issue may have affected any meeting recorded during the time of this event.
Start time: Monday, March 22, 2021, at 7:00 PM UTC
End time: Wednesday, March 24, 2021, at 12:00 PM UTC