X-Code 4.3.3 skip analyze warnings
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I am using X-Code 4.3.3 latest version. I build and analyze my project I got 30 analyze warnings, related to potential leaks, dead store etc. So, out of 30 warnings I have fixed 10 and again build analyze application it was showing 20 remaining.

For some other work I restart my mac and do some other task. After that I open my xcode to work on remaining warnings, I build and analyze project. It's doesn't showing any warnings. I have another copy of my project, when I tried on that, then there are correctly showing the remaining 20 warnings.

My question is without making any further changes, Why x-code not detecting remaining 20 warnings in my current project?