Hello,
I wanted to remove a tracker with the stamp tool today. But the stamp had to be lightened. Therefore I created a duplicate of the layer and lightened it a little bit with exposure. When I selected the alternative stamp source with effects and masks in the stamp, the effects on the post-exposed layer were ignored. This seems to be a bug. As an alternative I created a precomp and put the effect into it. Version 17.1.3 (Build 41 Windows) Thanks!