External USB-drive issue?

[PJW9779]

I upgraded to 23.10 yesterday.
Today I noticed I can no longer mount my external USB-drives (with backups and personal files).
FSTAB seems fine.
Check with Partition Manager gave an error, but without further details.

Both USB-drives however mount perfectly fine on my laptop running Kubuntu 16.04 LTS.

Any suggestions?

[Schwarzer Kater]

Welcome.

Does mounting it manually in the Konsole terminal emulator work?

Try:
sudo mkdir /media/my_usb
sudo mount -v /dev/[path_to_your_USB_drive] /media/my_usb (you can find out the path to your USB drive with e.g. lsblk -e7 -f)

And if you see anything out of the ordinary in the output, post it here (in CODE tags).