Animated stroke ignoring matte?

Hey y’all!

I’m trying to animate a stroke in AE using the trim paths and I wanted the stroke to tapper, but i’m finding out that tapper doesn’t seem to export using bodymovin so I thought I could try using a matte as a work around, but for some reason when I export my stroke seems to ignore the matte. Does anyone have any idea why this would happen, and if there might be a work around?

I found this article that might help