Packaged project crashes on exit

Development Platform & Builds
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1

Hello, I get a crash every time on exit the game. (I uses “Exit Game” blueprint node)link text

2

I don’t know but something wrong with this check
https://docs.unrealengine.com/latest/INT/API/Runtime/Core/HAL/FMallocBinned2/FFreeBlock/IsCanaryOk/index.html

            FORCEINLINE bool IsCanaryOk() const
	{
		return Canary == FFreeBlock::CANARY_VALUE;
	}

And this function always returns false value;
canary == 0x0 != 0xe3

3

Is it an engine bug?

4

I spent 15 hours, but solved this problem. The reason was one of the Substance textures. I don’t know why it crashes, the texture is displayed correctly in engine viewport and in packaged project with no information in log.