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I have an application coded in objective-c that are using CoreGraphics and CGPDFDocument, it's a PDF reader. With the release of iOS 15 i'm having problems with the rendering of certain pages in certain PDF files. The problem is not present with PDFKit. I have also downloaded the ZoomingPDFViewer example (https://developer.apple.com/library/archive/samplecode/ZoomingPDFViewer/Introduction/Intro.html#//apple_ref/doc/uid/DTS40010281) from the official apple documentation page and i see that the same thing happens. See the problem