Reproduction steps:
1. Open the attached project (ReproProject.zip)
2. Open and play the "Test Scene"
3. Press anywhere on the game view (game will be paused)
4. Repeat step 3 (physics are now initiated)
5. Notice that the white ball will flicker (check Repro.gif)

Expected result: After AddForce the white ball game object shouldn't flicker.

Actual result: After AddForce the white ball game object flickers.

Reproduced on: 5.1.4p1, 5.2.4p1, 5.3.1f1, 5.3.2.p4, 5.4.0b7