Steps to reproduce:

1) Download attached project and open in Unity.
2) Build and run project on a device.
3) Start tapping on a splash screen when it shows up until actual game scene starts.
4) In game scene, click anywhere and notice how camera jumps.
5) Press home screen (to leave game in background) and come back to game. Issue gone.
6) If you don't tap on the splash screen when app launches everything works fine.

Reproduced with: 5.3.6p3, 5.4.0p3, 5.5.0b1

Not reproduced with 5.2.4f1 << errors in console