Computer does not shutdown

[klt]

For a few days the shutdown process does not terminate. Here 2 screen shots:
screenshot at 22:05:47

screenshot at 22:11:38

I need to use the power button to switch off my desktop.

Luckily using NixOS I can start a previous build. The last one where the shutdown works is based on Kernel 6.6.4, the version just above the white line:

I am using NixOS 23.11 stable channel.

Any idea what might be the issue?
Which part of my configuration is relevant and shall be pasted here?

[_Andrew]

A few others have reported seeing this as well.

[aflux]

It’s a kernel regression - updating to the latest available kernel should resolve it.

[nixinator]

You got any more information on the regression ?

[aflux]

You got any more information on the regression ?

Here:

https://github.com/morrownr/USB-WiFi/issues/349

[klt]

Thanks for your replies.
An update to Kernel 6.6.6 solved the problem.