Add to calendar action stopped working?

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Hi!
Has enyone encouontered errors with adding entries to Exchange callendars through action and e-mail sending? Recently Microsoft stopped support of basic auth...

Oh, I forgot to mention: I have reactivated Basic Auth for all the protocols available in the article https://techcommunity.microsoft.com/t5/exchange-team-blog/basic-authentication-deprecation-in-exchange-online-september/ba-p/3609437 . Still no luck... maybe some more time is needed for changes to take effect.