The problem is that you appear to have installed the v10 touchscreen driver provided within the official Chuwi driver download package in place of the v17 that was installed when you first received the Hi10 Pro. I also found that v10 did not work but the originally-installed v17 driver [which I had backed up beforehand] works correctly.
This linked file is the SileadTouch v17.18.16.457 Windows driver and I installed it by right-clicking on the .inf file and selecting Install.
Please see my driver links - page 6, post #116 - ChuwiForum for further information about related driver issues [including how to back them up].
If you still have a problem with your pen afterwards, I suggest that you start a new thread for that topic.
Best of luck,
Denis