Graphics glitch in top right corner when swiping between desktops

kjetpett wrote:

When swiping between desktops I often get a graphics glitch in the top right corner of my screen. This happens on my current Macbook M1 Pro 16 (2021) and it happened on my previous Macbook Pro 13 M1 (late 2020) last year. I happenes on Monterey, but also on Big Sur (on the 13" MBP).

I see several other users are reporting the same issue and as far as I can tell nothing useful has been posted. It is not really causing any problems, it is just annoying. Especially considering that almost everything else is buttery smooth on the M1 Macs.

Here are some links to the other community posts I found (none of the generic tips posted there have really made any difference):

If no further issues—

You can file a bug report here: Product Feedback - Apple

if different macOS and different machines I would suspect some third party interference:

To trouble shoot further you can:

—Test issue in another user (or guest user) account Set up users, guests, and groups on Mac - Apple Support

This will tell you if it a universal issue or isolated to your user/admin account. 

—SafeBoot How to use safe mode on your Mac - Apple Support will sort many anomalies

Takes a bit longer to get to the login screen, does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, font cache, etc.

Login and test. Reboot as normal and test. Caches get rebuilt automatically.

In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc impacting the smooth operation, however a reboot will put it back to normal mode.

This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.

Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS

The current stable release of Monterey including bug fixes, is macOS 12.4

Keep your Mac up to date - Apple Support

https://support.apple.com/guide/mac-help/get-macos-updates-mchlpx1065/mac