Crash seems to be in a private Apple framework. There's some other reports of this floating around but no solutions so far. Any ideas?
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[WebAVPlayerLayer startRedirectingVideoToLayer:forMode:]: unrecognized selector sent to instance 0x6000037033c0'
*** First throw call stack:
(
0 CoreFoundation 0x0000000187d56800 __exceptionPreprocess + 176
1 libobjc.A.dylib 0x000000018784deb4 objc_exception_throw + 60
2 CoreFoundation 0x0000000187e083bc -[NSObject(NSObject) __retain_OA] + 0
3 CoreFoundation 0x0000000187cc0a84 forwarding + 1572
4 CoreFoundation 0x0000000187cc03a0 _CF_forwarding_prep_0 + 96
5 AVKit 0x00000001bdc81f30 -[__AVPlayerLayerView startRoutingVideoToPictureInPicturePlayerLayerView] + 156
6 AVKit 0x00000001bdcf1d48 -[AVPictureInPicturePlatformAdapter(Common) _setRoutingVideoToHostedWindow:pictureInPictureViewController:source:] + 84
7 AVKit 0x00000001bdcd952c -[AVPictureInPicturePlatformAdapter startPictureInPicture] + 380
8 AVKit 0x000000022883000c -[AVPictureInPicturePlatformAdapterAccessibility startPictureInPicture] + 44
9 AVKit 0x00000001bdcddea0 -[AVPictureInPictureController startPictureInPicture] + 216
10 WebCore 0x00000001c75277c8 -[WebAVPlayerViewController startPictureInPicture] + 128
11 libdispatch.dylib 0x0000000102c64f14 _dispatch_call_block_and_release + 32