[AP does not recognize subtracted areas]

Hi, no I didn't. Would this help?

 

[AP does not recognize subtracted areas]

Hi, first time in this forum. Don't know how to get around this: I select an object with the brush. The selection is overseized, so I reduce it with "subtract" to the shape I want. Now only the shape I want is selected. Now I am adding effects to it like brightness ("Helligkeit"). AP does not recognize the subtracted areas and applies the effect also to the previously selected areas which were overseized.  Is this a bug? Or do I miss something? Thanks a lot.