Time.timeScale does not work on ios 8.3 build by Unity5.4.1f1

Unity Engine
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1

I use the Unity 5.4.1f1 and 5.5.0f3 to build a project for ios. In the project I use the Time.timeScale for control the game, but it does not work on the ios 8.3. The Xcode version is 8.2.1. The Unity version is 5.4.1f1 and 5.5.0f3.

Whatever I use Time.timeScale = 2.0f or Time.timeScale = 0.5f, I show the log , the Time.timeScale is always 1.0;

But I run the same game on ios 10.1 or ios 10.2 ,the Time.timeScale worked perfect.

Does anyone has the same problem, help me . Thanks a lot！

2

I also find the same problem. I set Time.timeScale = 0 to pause the game.
But the game does not pause at all on iPhone 5s with OS 9.3.2, and Time.timeScale is still 1.0. after setting it to 0.
Another iPhone 5s with OS 10.0.1 works OK

PS: Unity 5.6.1