Outlook 365 - Can only view first line of emails + after typing first line, text disappears

Question

I can only view the first line of email text. When I enter text in an email, if I press enter, the text disappears and if I continue to type, nothing shows.

All was working fine earlier today....

Answer 1

Looks like they're working on it.
We’re investigating an issue with email message visibility in Outlook. Outlook on the web appears to be unaffected. More details can be found under EX255650 in the admin center.
https://twitter.com/MSFT365Status/status/1392208966231355392

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