I just updated Affinity Photo to 1.8.5. I wasn't having this problem before, but now when I double tap with my wacom pen while using a brush, instead of being the intended size, it has started creating a large dots where I'm pressing. So often with I'm trying to do small textures or sketchy lines everything I'm doing will be covered up by this dot. The dots appear to be the same size as if I had set the pen down and clicked with my mouse, so many times larger than it would be with the pen. I've checked my wacom pen settings and that's not the culprit, how can I turn off this new "feature?"