External Monitor Window Bug/Lag between monitors

I have the following problem (two external monitors):


All windows no matter if Finder, Safari, Preferences, etc. as soon as I move them and leave them between the two monitors, a lag/flicker happens. -> see video

https://youtu.be/TIygikwIRA8


I have already tried it with different monitors:

Dell U2723QE

LG UltraFine 5K 27MD5KL


The problem also happens with my MacBook Pro M1 Pro and my Mac Studio M1 Max, always connected via USB-C TB with the included cables of the monitors.


Both devices are running Ventura 13.2.1.


Have already tried Safe Mode as well as group accounts - without success...


I have tried a lot of things and I am at a loss as to what the problem could be. Maybe you have some tips or ideas.


Mac Studio

Posted on Feb 27, 2023 12:48 PM

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Mar 1, 2023 01:00 PM in response to stefan1705s

Hey there stefan1705s,


Thanks for reaching out to the Apple Support Communities.


Based on the information you've provided, and the steps you've gone through, the next best option would be to reach out to Apple Support directly from this link here: Contact - Official Apple Support


They would be the best option to take a closer look into the issue from here.


Best regards.

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External Monitor Window Bug/Lag between monitors

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