Thomas Huerlimann wrote:
No, reboot and shutdown are no solution.
Files are on the internal SSD.
Scrolling through the folder only shows standard icons, the icon rendering stays far behind. Like I said, even on a 2010 Macbook with Snow Leopard and the files on an external HDD it was able to scroll though that folder showing all the individual cover icons while scrolling.
One the M1/M2 SoC Macs — try a Safeboot to sort anomalies —log in and test, reboot as normal and test
Try a SafeBoot How to use safe mode on your Mac - Apple Support
certain system caches get cleared and rebuilt, including dynamic loader cache, font cache, etc., third party system modifications and system accelerations are disabled.
Login and test. Reboot as normal and test. Caches get rebuilt automatically.
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.
no insight ir resolve
—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.
Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus
all known to cause issues on the macOS
