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random app crash on iPhone device

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I've been struggling with an issue in titanium mobile for ages. My app crashes for what seems to be no apparent reason on random sections of the app. I'm using the tabgroup but I'm not sure if thats the cause.

The app is very image intensive as it's for a retailer. When monitoring the memory I can see that it's leaking some, but I've limited this. The problem seems to occur mostly when navigating around quickly (i.e. jumping from product to product and page to page fast).

There are xhr calls that fetch the information for each page and having checked the crash log from the phone I've fond the EXC_CRASH (SIGABRT) error. I'm not sure if the error comes from the xhr calls not completing, if this is the case does anyone know of a workaround or further error check to cancel an uncompleted call on window close?

I'm really not sure of the issue here, any thoughts you may have regarding possible fixes etc would be greatly appreciated.

Excuse me for the irate ranting style of this post, but this really has been bugging me!

I'm using the titanium studio SDK 1.7 on an iPhone 3GS ver 4.3.4


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