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Running Outlook on the iMac causes the screen to flicker and eventually black out and reduce to half/split screen display.
If I don't run the Outlook app the Mac runs like clockwork.
With Outlook active, at some point the flickering begins and then gets progressively worse until the screen is completed fuzzed or it pops back to a half black screen (which continues to flicker intermittently - more often than not)
Whilst it sounds like a hardware issue (and I've ordered a new Mac thinking it was!) it appears to be tied to Outlook.
iMac (Retina 5K, 27-inch, Late 2015)
3.3 GHz Intel Core i5
8 GB 1867 MHz DDR3
AMD Radeon R9 M395 2048 MB
Mac OS 10.14.1 (18B75)
Outlook 16.19
Rebooting seems to clear it until we run Outlook again, then the cycle continues.
Using older versions of Outlook for Mac for personal email and calendar
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
I've found a "work-around" that works on my iMac (Retina 5K, 27-inch, Late 2015).
I have another (non-retina) screen attached to my iMac through HDMI. As long as I keep Outlook running on the secondary screen I will not get issues anymore with the main screen of the iMac flashing.
I have this problem too with all the office 365 Apps
iMac (Retina 5K, 27-inch, Late 2015)
3.2 GHz Intel Core i5
24 GB 1867 MHz DDR3
AMD Radeon R9 M395 2048 MB
Mac OS 10.14.4
Hi All,
If you experience a similar issue in your iMac, please try to create a new thread in our forum since the root cause may be different in your case. We'd love to collect more detailed information and do the further investigation for you.
And I've consulted with our engineering team, they've been aware of this issue. From their proposal, it's recommended for you to feedback in Outlook for Mac UserVoice website to share with them directly. It's highly appreciated for your understanding.
Regards,
Marvin
Also having the same problem, having similar hardware:
Mac (Retina 5K, 27-inch, Late 2015)
AMD Radeon R9 M395 2 GB
I run Outlook 16.25 (Office 365), Teams (corporate communication) and Skype (personal). Having the same issues for about 2 weeks (some 4-5 times a day).
Hi all,
I seem to have found a "work-around" that works for me, albeit not an optimal one. I have a second screen attached to my iMac and I've noticed that if I keep Outlook on that screen all the time I don't get these glitches anymore. My second screen is non-retina by the way, not sure if that is somehow related.