"Set Global Time dilation" node dose not work on mobile (iPhone 5c)

The "Set Global time dilation" node does not have an effect when being applied on the mobile platform iPhone 5c.

1. Open vehicle template
2. Navigate to: Content > VehicleBP > Sedan
3. Add a "Set Global Time Dilation" to the event begin play as shown in the picture
4. Set the float to 20
5. Launch to the iPhone 5c
6. Notice that the game runs at normal speed