I just bought the affinity photo a day ago. And I was playing with it (I'm a newcomer in drawing and in affinity photo). The problem that I have is that when I'm using the brush tool and I just barely hover over the tablet (a HUION H420) the brush activates and let some pesky ink dots in my canvas.
Now, maybe it could be the pen nib that is already a bit used. If someone had this problem before, please, tell me how to fix it because I find it annoying.