Did you ever get any more insight in this? I just released an update with the old style icon and my 1024x1024 icon has been blurred on the App Store.

I have a similar problem. I changed a class to call a different method in another class, but Xcode does not seem to update the call hierarchy for this. Project contains Swift and Objective C code, but I don't see that that should matter. This issue is in code that is only Obj C. Class1: (NSString *)method1 (NSString *)method2 Class2: [class1Instance method1] After code change: Class1: (NSString *)method1 (NSString *)method2 Class2: [class1Instance method2] // Start calling method2 instead Using call hierarchy on "class1 method1" states that Class2 is still using it! Using call hierarchy on "class1 method2" states there are no usages!