So i have the Huion 420 tablet and it works in krita for the most part, however, ive noticed something strange. My lower button uses the pan tool and undoes (i have it mapped to ctrl z) at the same time. And when i hold it, it stays on the pan tool. There is no mapped button to the pan tool, and when i let go, it stops. Does anyone have an answer to this?

Simple: don't do that. Don't map the button to ctrl-z. Apparently, the Huion driver keeps sending middle-mouse button even though the button has been remapped, so you get two events. There is nothing we can do abou that.

Oops, wrong thread .

Try to go back to an older version of the Huion driver.