Shatter not showing footage.

Shatter is a physical simulation that uses a force property to start the effect. By default the force is set to fill most of the screen and there are no keyframes. Look at the ECP (Effects Control Panel) and find Force 1. Change the radius to zero or move the force back out of the layer plane and no simulation of a shatter will happen.  Move the CTI (current time indicator) to the point in your animation where you want the shatter simulation to start and set a keyframe for force radius or position, then move down the timeline a few frames and set the force radius or position so you get the effect you want.

This is the most basic principal of all animated effects. It applies to all effects that have a value greater than zero on any of their controls. Think particle systems, warping effects, distortion effects. Most of them are show you a change in your layer default, if you want to make it happen later you have to change some settings and set some keyframes.

There are a million ways to animate shatter from using gradient maps to setting the force radius to something very small pasting the path of a shape layer to the position property of Force 1 (think Zorro). There is no need to Pre-compose or do any other work arounds, just animate the properties that make the effect work. I'm not sure why it's so hard for new users to figure out that they need to look for things to animate when they use Shatter.

About 1 minutes work using a shape layer for the source of the and the motion path for Force 1.

So far I see one work around, which is exporting(rendering) that clip out of the project, and importing that clip into after effects, applying shatter, then reimport that comp into premiere. I know this will work, but I wish I can figure out shattering that section without going thru these extra steps.