Summary: Haven't been able to repro this, but from the stack trace it seems like this NSData object is null in some cases: https://www.internalfb.com/logview/details/instagram_ios_crashes/d0e929eae516ec48380518380cfca9f5/?selected-logview-tab=Employee+Traces Reviewed By: lblasa Differential Revision: D37995141 fbshipit-source-id: 937217a7a5b1c7cc992f3f9ca5dc3a7e31165d1c