Outlook 2016 for Windows display issue on 1801 (Build 9001.2171)

Hi Adam, this sounds very similar to the issues that were discussed here - Office 365 ProPlus 1801 (build 9001.2138) Graphics Glitch (can't link to discussion for some reason). The overarching issue seemed to be linked to a service health issue EX128811. This has since been closed, so not sure if it was fully related: 

" We recommend any affected user restart the client, wait 10 minutes, then restart the client a second time to force a client update which will resolve the issue."

There were some suggestions in the discussion I mentioned above that could be worth checking out:

Michael York wrote:

Also impacting us, opened a ticket with MS Support, evidently they're aware and working on a fix in future build. Impacts ProPlus builds 9001.2138 and 9001.2144 on Win10 Pro 1703 and 0709. 

Found a manual fix on a few systems. Update client to latest version of Office proplus. Restart outlook in safe mode (Outlook.exe /safe). See if that prompts the Office ProPlus EULA activation pop up window. Accept and restart outlook in normal mode. Some users were 'fixed' this way. 

Your milage may vary - other threads suggest updating to current branch first release, disable plugins, disable hardware acceleration, update Adobe PDF viewer, ect. 

Just to add Adam Zembrosky, I'd log a service request, if you haven't already, I have heard other reports of this issue and the more evidence Microsoft gets, hopefully, a proper resolution can be found, sooner rather than later.