Tolgan

I've just been speaking with the developers about this and they are actively looking into it. They would very much like to get this nailed down as soon as they can. 

Ok, I'm not alone with this bug !
Thanks for your answer Frozen Death Knight.

Wacom user as well. I have the same issue as you and it is unique to the Beta and Windows Ink. There is also a bug where you can't properly emulate brush strokes without pen pressure using an L click assigned button. Until the devs fix the bugs in a new Beta build, we will have to rely on the mouse or keyboard shortcuts to change brush size. However, Affinity keeps freezing for me when I use alt+R click+L click on my mouse, so I recommend the keyboard.

Great thanks firstdefence for the quick and detailed answer !
I didn't know this feature, which is perfect to store selections.

Hi!
It's possible to select pixels with Ctrl+left Click on thumbnail layer.
It's also possible to add pixels with Ctrl+Shift+ left Click on another thumbnail layer.
Is there a way to subtract current selection with layer content (like Ctrl + Alt + left Click in photoshop) ?
And an other way to have intersection between current selection and layer content (like Ctrl + Alt  + Shift+ left Click in photoshop)?
 

You can save selections as spare channels and intersect and subtract from there.
Make a selection Save selection as a spare channel
Make a second selection and do the same, you can now load selections and subtract and intersect them.

Hey Tolgan,
Thanks for letting us know. I will pass this to the development team.

Hi, 
When I press my custom shortcut for Select ->  Select Sampled Color, Affinity Photo instantly crashes.

Hi I'm Tolgan,
I have been working in video game industry since 2004 as 3d artist, and currently try out Affinity photo for personal projects.