Created attachment 146255 [details]
This only seems to happen when the tablet is in portrait mode, not in landscape. The attached picture shows the location of the pen (blue) and the location of the cursor (pink)

SUMMARY
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I put my hand on my tablet (Lenovo X1) in the natural drawing position. It was fine the first time I drew a circle for the head, but when I got to the "jawline" of the face, the pen cursor was way off. It was showing above and to the right of where my hand was resting.

STEPS TO REPRODUCE
1.  placing pencil hand on tablet while drawing
2.  Response to touch disabled when pen is active
3.  Digital pen selected as brush

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION