Repro Steps:

1) Create a Page
2) Create a Component containing any element, and create a Storyboard for this Component, which features any visible animation in it. Set it to infinitely loop.
3) Within the Component, set a Trigger on the ComponentRoot, which on 'Loaded', Begins playing the Storyboard animation.
Observe how the animation plays infinitely.

4) Drag the Component onto the Page.
Observe how no animations are visible.

Expected Result: Component Animations are Triggered as any other Element.

How a Temporary "Fix" was applied:
Remove the non-functioning trigger, and instead of setting the Trigger to the Component Root, set it the next highest Element in the Navigator hierarchy (ie a parent Grid).
Observe how the animation now plays in the page.