Steps to reproduce:

1) Download attached project and open in Unity
2) Switch platform to android
3) Build and Run 'MainGame' scene on a device
4) In game, press button 'Got it!'
5) Click on any random letter and particle system will appear

Note: particle system will be distorted

To see expected and actual result check attached images

Reproduced with:
5.3.7p2, 5.4.3p1, 5.5.0f3