KDE/Plasma: Dolphin won’t mount external SSD LUKS partition anymore: “Object does not exist at path /”

As stated in the title, after upgrading (on April 16th, 24), Dolphin can’t decrypt the encrypted luks partition I have in my external SSD anymore. This is the first time this happened to me.

The error given by Dolphin is: “Unspecified error: Object does not exist at path /”.

I can mount the device as root in the CLI (Konsole) with no issues at all.

So far, in Dolphin, the only thing in I had to do was, after clicking on the device line, enter the password. Now, clicking yields the above message.

Other non-encrypted partitions from this drive mount regularly from Dolphin.

I tried reinstalling udisks2, polkit and polkit-kde-agent. Nothing changed.
Removing Dolphin stuff: rm -f /home/<user>/.cache/dolphin and rm -f /home/<user>/.config/dolphinrc didn’t make any difference either.

Kernel:

uname -a:

 6.5.0-27-generic #28~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Mar 15 10:51:06 UTC 2 x86_64 x86_64 x86_64

The problem starts after frameworks 6.1 was installed in my PC

Thanks in advance!

You clearly did not check for a solution on the forum before posting.
2 threads down from yours…

Mount it manually until the patch reaches your distro.
I would not recommend you downgrading anything.