Why my game turn off when press home button?

Unity Engine
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1

As far as I know, if press iphone home button, game should stop and maintain its progress when in background.

Only exception to is when checking ‘exit on suspend’.

I didn’t check that true, but whenever I press home button, my game terminated and if I touch my game icon, it reload from scratch.

Why?

There isn’t much apps background, only ran my game only.

2

If you run the game with Xcode, does it complain something when you press home button?

3

The app might be getting silently killed by the OS for memory use, if your app uses a lot of RAM.