Actors in 4.16 do not enter a resting state when expected

There is extra random bouncing that can last a couple of seconds that does NOT occur in 4.15.2. Sometimes the cube would look like it settled, then randomly pop and bounce again.

This happened on both code and blueprints projects.

Repro:

1. Create a first person template project.
2. PIE - Viewport
3. Shoot the cubes

Result:
Cube does not enter a resting state in the same manner as 4.15.2.