Use an image layer and masking instead.
On the left, I recreated your tie, using image texture. Same jaggies.
On the right, I exported the fill without the texture and outline to a PNG image, and filled it with your pattern in an image editor. Next I imported it as an image layer into AS, and sandwiched it between a layer on top with the outline (and no fill), and a lower underneath as a mask (add to mask, but keep invisible). I turned on mask hiding in the bone layer.
Here is the zip archive of the project:
fancy_tie.zip (369 KB).
Note, that I didn't take the time to properly pattern fill the tie in my image editor (Gimp). I gladly leave that up to you.