Working with mask

[wim]

Good afternoon, 

I have to go over the mask twice with a paintbrush to get it clear.  With white back over the mask I have to go over it twice to undo it.  everything is at 100%.  The question;  where do I need to change something to get this right.  

A.P. Version 2.4.2 on Windows 11

Thanks for the answer 

[PaulEC]

You probably have Wet Edges set for the brush you're using.

[NotMyFault]

Choose a basic round brush with hard edges. Some brushes are soft and semi-transparent.

Then check all color and brush settings again.

if brush does not work correctly on mask, create a fresh pixel layer and check how the brush works there.

[wim]

Thank you, I'll try it.

[wim]

That's it, thanks a lot for the help.