PVE 8.2 / Kernel 6.8.4-2 does not boot - cannot find root device

With the new kernel in 8.2 I am facing the problem that initial waiting for the root device times out and boots into a busybox shell.

The error messages I see are:

Timed out for waiting the udev queue being empty (2 times)
Gave up waiting for suspend/resume device
Gave up waiting for root file system device
...
ALERT! UUID=xxxxxx... does not exist. Dropping to a shell!

I had similar problems initially with earlier kernels too, so from the very beginning with this...

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