I have a Wacom Intuos 5 Pro pen tablet. It always was recognised as the in system settings. Now it is seen as
unknwon Waltop device ox26 
and the buttons don’t match properly etc. I have tried reinstalling all the Wacom related files and the KCM for tablet recognition. All that fixed this one time it happened before after another update. I can’t seem to find my way out of this problem. Any help would be much appreciated.
Maybe I should rephrase the question. The Wacom was working fine all along for the past few years and recently after a tumbleweed update it is no longer seen as a wacom pen and tablet, instead it shows an
unknown waltop device at 0x26
and unknown is spelled wrong like “unknwon”. However, on windows machine it is still correctly detected. Even on an old machine with GNOME and running Leap it is correctly detected. I am at a loss to know what to do here. I am illustrating for my business on the machine that no longer recognises it.
I am assuming you are using Plasma Desktop and I have no knowledge with the plasma setup on wacom
I have an older wacom intuos that I use in krita but in xfce. Sometimes the mapping specially if I plug a new usb gadget it messes up the mapping so I have to
redo the wacom config according to the order of new detection number base on the result from the command
xsetwacom list devices
Doing this I have a startup script in my /home/user that I can modify in order to make my wacom intuos work the way it was detected. I just logout after the changes to the script and login again.
This might not be the right answer to your problem but I am just writing this to add some hint of some of the problem with wacom on linux.