Last Updated: October 17, 2019
We have identified an issue where macOS (primarily running Mojave) screen flickers on some of the iMac machines when using Outlook for Mac.
You are most likely using an iMac (Retina 5K, 27-inch) machine. While using Outlook for Mac, the screen flickers and you need to reboot the machine to clear the issue.
The issue has been fixed with the release of macOS 10.15, Catalina.
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