Outlook not showing email content – temporary workaround

OP here. Further information from Microsoft 365 Status on Twitter: https://twitter.com/MSFT365Status/status/1392208966231355392

Impacts current release of CTR Outlook Windows. Not impacted: mobile, OWA and Mac.

We are trying the roll back, will update this comment if it is effective:

C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe /update user updatetoversion=16.0.13901.20462

Update: This cleared up the problem. Took about an hour to revert.