iOS Share PDF

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Are there known issues currently with iOS (14.7.1) and sharing PDFs from Adobe?  I have implemented the sharing of PDFs on Android from the native file system, adobe, google chrome..... I have done the same on iOS as well but for some reason the share from Adobe only works 1/15 times.  The file system thinks all the test files exist and are read/writeable but for some reason the behavior is incredible inconsistent.  

Just wondering if there are reported issues relating to this at this point in time... I've also experienced a lack of ability to share PDF through Safari browser when it works 100% w/ google chrom on iOS..

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Also note this is in objective c not swift..