WoCCatalog [ARM|Release] Red Gesture response line with 3 and 4 finger pan errantly jumps at the end

[bebauer-msft]

Phone: Lumia 950 device (14995 build)
Master commit: 4804ed9

Build/run WOCCatalog in Release.
Tap "Gestures"
Drag 3 fingers down the center of the screen (keeping your fingers as evenly spaced as possible)
Observe the red gesture response line.

Expected:
Red gesture response follows the center finger blue line

Actual:
Red gesture response line follows the center finger blue line until the end where it consistently juts off to the right of the screen.