so i saw this video on youtube where the user is experiencing issues with tabletpro based upon the pen setting of dominant hand control (located under start menu>settings>devices>pen>choose which hand you right with)
here is a link to the video
https://youtu.be/1YUrs7QpNI8?t=5m42sand im noticing the same issue as well. i even have the setting checked for, "allow simultaneous operation of pen and touch (HID) Note: it will depend on device" and i am using the core i7 SP4. the user in the video is using a surface book.
even when i set the device settings to left hand, instead of right hand, i get some stutter, and certain buttons want to press twice in the left hand column. and since i am using left hand, i cant rest my right hand in the screen because it registers it as a right click.
my current setup is side mode on the left hand side.
credit goes to The CG Alchemist for finding this.