Notification for Device Connection/Removed supressed after a fresh reinstall

Hello,
I use KDE today on 3 Devices, i installed 2 weeks my Distro with KDE and replaced the Homefolder with one of my other devices, everything works fine, i also see Notifications.

But with the exception for connect/remove a Device (external USB HDD for example), there is no Notification at all.

I connected the External HDD to one of my other PC’s and clicked on the little logo to see how the exact notification setting is leading me, but after i compared both devices and both menues (side by side) all KDE Notifications looks identical and the hook was already set that a notification should pop up.

I don’t know why ONLY device connected and device removed is supressed but other notifications are unaffected and why it happends only on my new install.

I duplicated this Topic from KDE btw.:

This is sketchy.

It’s best to import items as and when required to the new Home folder, not completely replace it, in my experience.