Outlook Email view graphics problem

[Peter_Havens_PWH]

Anyone have an idea how to clear up display issues in the Outlook email user interface? On Windows 10, Office 365, Dell XPS-13-7390 updated. The Outlook email list shows a graphics glitch on the left inside the field header line just above sort headers. The glitch is a row of gray crosshatching bar with a black bar beneath, extending from the left through the first couple of headers.

[#2]

I'm seeing the same issue on Outlook 2021 (standalone), Dell G5 SE, Windows 10. Wouldn't it be nice if someone from Microsoft responded? I only see it when I'm in my Inbox folder, and it does go away if you move to a different folder. I think it's related to the Send/Receive action, those graphics usually appear on the bottom information bar during send/receive actions. Hope we hear something soon, it's very irritating.

[#3]

Same issue here. Dell Precision Windows 10 64bit with 21H2 update, Nvidia and Intel onboard graphics, Office365 64bit, all plugins switched off/uninstalled. Mail syncing to Office365 mailbox, in cached mode. No matter what graphics board I install, or using onboard graphics, the black boxes in Outlook return. Wiped hard drive, installed Windows 10 64bit again and Office365 64bit, and problem returned. I switched off extra animations, as well as loading previews and other options in trust center, and problem still remains.