That is very odd indeed. I've no idea whatsoever on what could be going on there... but I had a quick look around...
www.minitool.com
Also how about trying a repair install. I had to do that a few build back and was absolutely amazed how well it all went... as in perfect with everything just as before.
www.elevenforum.com
And the outcome:
www.elevenforum.com
Of course I then had to apply the reg files with it being a 'new' install.

Best Solutions to Registry Settings Keep Reverting
What if modified registry settings keep reverting? Read this post to see how to prevent registry key from being reverted automatically.
Also how about trying a repair install. I had to do that a few build back and was absolutely amazed how well it all went... as in perfect with everything just as before.

KB5040557 Windows 11 Insider Dev build 26120.1340 (24H2) - Aug. 5
UPDATE 8/09: https://www.elevenforum.com/t/kb5041871-windows-11-insider-dev-build-26120-1350-24h2-aug-9.27478/ Windows Blogs: Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 26120.1340 (KB5040557) to the Dev Channel. This update is delivered in a format that...

And the outcome:

KB5040557 Windows 11 Insider Dev build 26120.1340 (24H2) - Aug. 5
UPDATE 8/09: https://www.elevenforum.com/t/kb5041871-windows-11-insider-dev-build-26120-1350-24h2-aug-9.27478/ Windows Blogs: Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 26120.1340 (KB5040557) to the Dev Channel. This update is delivered in a format that...

Of course I then had to apply the reg files with it being a 'new' install.
My Computer
System One
-
- OS
- W11 Pro x64 24H2 Dev
- Computer type
- Laptop
- Manufacturer/Model
- Dell 7760 Mobile Precision 17"
- CPU
- Intel i5
- Motherboard
- Unknown
- Memory
- 8Gb
- Graphics Card(s)
- Intel HD Graphics
- Sound Card
- Realtek
- Monitor(s) Displays
- Internal
- Hard Drives
- 2 x 256Gb SSD
- PSU
- Dell 240 watt
- Mouse
- Dell Premier Bluetooth
- Internet Speed
- 50Mbps
- Browser
- Edge
- Antivirus
- Default Microsoft Security