The "Huion Tablet" driver has some cool features such as support for precision mode and "quick menu", which is supposed to look like 6 buttons appearing around the cursor.
Both of these features are supposed to appear "around" the current cursor position. However, when Windows Ink is enabled, they appear in a place that may appear random. After some experiments, I figured out that they appear around the "old" mouse position, i.e., the place where the mouse cursor used to be before I moved it with my stylus.
Is there a known workaround? Disabling Windows Ink is not really an option because without it the pressure sensitivity feature doesn't work in any of the applications that I use.