Recently, our app crash monitor detect a lot of PDFKit crash problem at iOS 15.3: MACH_Exception EXC_BREAKPOINT EXC_ARM_BREAKPOINT fault_address:0x00000001809a52d8 Thread 67 name: PDFKit.PDFTilePool.workQueue 0 CoreFoundation _CFRetain (in CoreFoundation) 1 CoreGraphics _CGColorRetain (in CoreGraphics) 2 PDFKit -[PDFPage _drawWithBox:inContext:withRotation:isThumbnail:withAnnotations:withBookmark:withDelegate:] (in PDFKit) 3 PDFKit -[PDFPage drawWithBox:inContext:isThumbnail:] (in PDFKit) 4 PDFKit -[PDFView drawPage:toContext:] (in PDFKit) 5 PDFKit -[PDFTilePool _renderTileForRequest:] (in PDFKit) 6 libdispatch.dylib __dispatch_call_block_and_release (in libdispatch.dylib) 7 libdispatch.dylib __dispatch_client_callout (in libdispatch.dylib) 8 libdispatch.dylib __dispatch_lane_serial_drain (in libdispatch.dylib) 9 libdispatch.dylib __dispatch_lane_invoke (in libdispatch.dylib) 10 libdispatch.dylib __dispatch_workloop_worker_thread (in libdispatch.dylib) 11 libsystem_pthread.dylib __pthread_wqthread (in libsystem_pthread.dylib) 12 libsystem_pthread.dylib _start_wqthread (in libsystem_pthread.dylib) It crash at the thread: PDFKit.PDFTilePool.workQueue Anyone got the same problem? Is there any solutions for this problem?