Hello!
Just tried to find “stroking a mask”, but theres only illu tutorials showing up, so i dont really know what you mean by that term.
What is not working:

As you can see here i have the motion path on my “tracker”-layer. Now i try to copy this information per ctrl+c ctrl+v to my shape-layer – >Mask 1 to get a path i can use the stroke-effect on. But this doesnt work, it always copies the info into the transformation-part of the shape-layer.
Maybe im just too stupid and i dont get it at all, how it works.
ben