When I'm brushing away in my mask layer there are a couple of "dead" pixels. Or well pixels that are not removable with the brush tool. When I try to "erase" these pixels in the original image the pixels dissapear. So it's nog a problem with my screen, it seems to be an issue in the mask layer.
I tried googling it but it seems to be an impossable search term. Hopefully someone can help me fix this problem.
This is a new problem, that i've only noticed today so far.