SharedPreferences does not work if many is used?
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In my app I have a strange and annoying "bug". The "bug" makes my app refuse to load sharedPreferences. In other parts of my app I use one or two SharedPreferences with good luck and no bugs. But when I try to handel about 75 of them they seem to be gone. 

I do not know where to start debugging to find out why. Is it my low spec phone or some kind of overload that causes this problem?