This code works perfect on armv7 (32 bit) but not on arm64 (64 bit)

Question

The code:

UIColor * color = [NSKeyedUnarchiver unarchiveObjectWithData:self.colorData];

if ([countedColorSet containsObject:color]) {
    //Do stuff
}

What's wrong:

No errors, but "Do stuff" never runs (64 bit)... even when 'color' is identical to one stored in the set. Testing with no other conditions changed on 32 bit works fine and "Do stuff" runs.

So:

Am I going crazy? What could I be missing?

Answer 1

Confirmed via an Apple Technical support incident that this is a bug relating to the archiving class on arm64. Their suggestion was to build a custom archiver class instead.