UIImageView with iOS 7 not showing up

Question

I have an app I was building for iOS 6 that I recently upgraded to iOS 7. I have a UIScrollView with a few Custom UIViews. Within those UIViews, I have a single UIImageView in each. For some reason, when I set the UIImageView.image in iOS 6, it shows up fine, but iOS 7 will not show them. Here's the code:

int i = 0;

        for (UIImageView *imageView in myImageViewsOutletCollection)
        {
            imageView.image = nil;
            if (imagesArray.count > i)
                imageView.image = [UIImage imageWithData:[imagesArray objectAtIndex:i]];

            if (imageView.image == nil)
                NSLog(@"signature image with index: %i is nil", i);
                    else
                            NSLog(@"It Worked")

            i++;
        }

My app is logging: @"It Worked", so I know the UIImageView.image isn't nil. What could I be doing wrong?

EDIT:

I tried the UIImageRenderingMode:

UIImage *imageForView = [UIImage imageWithData:[imagesArray objectAtIndex:i]];
imageForView = [imageForView imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

imageView.image = imageForView;

Still didn't work. However, @Max_Power89 said:

as it is written on the apple developer forum : imageWithData bug report

this must be a bug. i hope they fix the problem early.

EDIT 2:

I also added this:

NSData *pngData = UIImagePNGRepresentation(imageView.image);
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *docs = [paths objectAtIndex:0];

NSError *writeError = nil;
[pngData writeToFile:[docs stringByAppendingFormat:@"/image.png"] options:NSDataWritingAtomic error:&writeError];
if(writeError!=nil)
{
    NSLog(@"%@: Error saving image: %@", [self class], [writeError localizedDescription]);
}

The image was saved in app's directory, so I know for certain that the image isn't nil.

Answer 1

It's a problem/bug with Auto Layout constraints in iOS 7. If you remove the constraints on the UIView, it works no problem. You can set frames programmatically if you need to.