Player may be crash.

[ZHDeveloper]

Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libobjc.A.dylib 0x00000001b290e4ac object_isClass + 16 1 Foundation 0x00000001b2faa5f8 KVO_IS_RETAINING_ALL_OBSERVERS_OF_THIS_OBJECT_IF_IT_CRASHES_AN_OBSERVER_WAS_OVERRELEASED_OR_SMASHED + 44 2 Foundation 0x00000001b2fa8120 NSKeyValueWillChangeWithPerThreadPendingNotifications + 272 3 AVFoundation 0x00000001bce0aa14 __31-[AVPlayerItem _updateTimebase]block_invoke_2 + 180 4 libdispatch.dylib 0x00000001b28b29a8 dispatch_call_block_and_release + 24 5 libdispatch.dylib 0x00000001b28b3524 dispatch_client_callout + 16 6 libdispatch.dylib 0x00000001b28966fc dispatch_main_queue_callback_4CF$VARIANT$armv81 + 860 7 CoreFoundation 0x00000001b2b6b6bc CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 12 8 CoreFoundation 0x00000001b2b66590 __CFRunLoopRun + 1724 9 CoreFoundation 0x00000001b2b65ba8 CFRunLoopRunSpecific + 424 10 GraphicsServices 0x00000001bccd5344 GSEventRunModal + 160 11 UIKitCore 0x00000001b6ca13e4 UIApplicationMain + 1932 12 libswiftUIKit.dylib 0x00000001e97dc2b4 UIApplicationMain+ 45748 (::::) + 168 13 Blessed 0x000000010454dd04 static UIApplicationDelegate.main() + 56580 (:0) 14 Blessed 0x000000010454dc8c static AppDelegate.$main() + 56460 (:0) 15 Blessed 0x000000010454e110 main + 57616 (AppDelegate.swift:0) 16 libdyld.dylib 0x00000001b29ed8f0 start + 4