Hello again,
Really sorry to see you still have found no cause & fix for this yet.
A bit of a shot in the dark this but I see in the release notes for Windows driver 6.3.36-1 there is this note about a known driver problem; “Custom application specific settings may not work for multiple versions of the same application”.
So I wonder do you have any other previous ArtRage apps i.e. 4.x, 5.x or 6.x etc… in the Wacom preferences?
If so, have you tried removing all instances of ArtRage from the Wacom preferences, then re-adding only AR 6.0.10 back ?
But make sure you have used the Tablet Utility to make a backup of your current settings first so you can easily get them back if needs be!