VideoTexture Crashes iPad - ios

Question

I'm running a video texture in Away3d in an Adobe Air app which runs fine on desktop and Android, however on iOS it crashes as soon as it tests for VideoTexture support
I create the video as such
sphereGeometry = new SphereGeometry(5000, 64, 48);
panoTexture2DBase = new NativeVideoTexture(Model.config.getAssetUrl(Model.currentScene.video), true, true);
panoTexture2DBase.addEventListener(NativeVideoTexture.VIDEO_START,function(e:Event =null){setTimeout(onVideoStart,1000)});
panoTextureMaterial = new TextureMaterial(panoTexture2DBase, false, false, false);
panoVideoMesh = new Mesh(sphereGeometry, panoTextureMaterial);
panoVideoMesh.scaleX *= -1;
panoVideoMesh.rotate(Vector3D.Y_AXIS,-90);
scene.addChild(panoVideoMesh);
view.render();
panoTexture2DBase.player.pause();
And the iPad appears to crash as soon as it plays
_player.play();
In NativeVideoClass
Does anyone know how to stop the iPad crashing when I try and use VideoTexture or is this doomed to failiure?
This is the Air 21.
I've tried taking the video out of Away3d and into Starling. I've changed the codecs and managed to get it running in Starling.
The same video is still crashing in Away3D tho. It's when it's gets added to the stage.
I'm also getting NetStream.Play.Failed in the netstats event before it fails.
The crash report
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x00000000000000d8
Triggered by Thread: 0
Filtered syslog:
None found
Global Trace Buffer (reverse chronological seconds):
63.498324 CFNetwork 0x0000000184c53a30 TCP Conn 0x12955be00 complete. fd: 10, err: 0
63.499758 CFNetwork 0x0000000184c54f5c TCP Conn 0x12955be00 event 1. err: 0
63.776992 CFNetwork 0x0000000184c55034 TCP Conn 0x12955be00 started
65.311738 CFNetwork 0x0000000184c53a30 TCP Conn 0x1275da440 complete. fd: 10, err: 0
65.312713 CFNetwork 0x0000000184c54f5c TCP Conn 0x1275da440 event 1. err: 0
65.561496 CFNetwork 0x0000000184c55034 TCP Conn 0x1275da440 started
65.824002 CFNetwork 0x0000000184c53a30 TCP Conn 0x1275d7370 complete. fd: 10, err: 0
65.825093 CFNetwork 0x0000000184c54f5c TCP Conn 0x1275d7370 event 1. err: 0
66.092512 CFNetwork 0x0000000184c55034 TCP Conn 0x1275d7370 started
66.434776 CFNetwork 0x0000000184bb1a18 TCP Conn 0x12756c8a0 SSL Handshake DONE
67.267381 CFNetwork 0x0000000184bb1928 TCP Conn 0x12756c8a0 starting SSL negotiation
67.268033 CFNetwork 0x0000000184c53a30 TCP Conn 0x12756c8a0 complete. fd: 10, err: 0
67.268518 CFNetwork 0x0000000184c54f5c TCP Conn 0x12756c8a0 event 1. err: 0
67.642271 CFNetwork 0x0000000184c55034 TCP Conn 0x12756c8a0 started
67.648583 CFNetwork 0x0000000184caa608 Creating default cookie storage with default identifier
67.648583 CFNetwork 0x0000000184caa5d4 Faulting in CFHTTPCookieStorage singleton
67.648583 CFNetwork 0x0000000184cfc394 Faulting in NSHTTPCookieStorage singleton
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 Video Test 0x000000010042d52c 0x1000b0000 + 3659052
1 Video Test 0x0000000100187688 0x1000b0000 + 882312
2 Video Test 0x0000000100182b94 0x1000b0000 + 863124
3 Video Test 0x0000000100182ab0 0x1000b0000 + 862896
4 Video Test 0x000000010042bfb4 0x1000b0000 + 3653556
5 Video Test 0x0000000100185ec0 0x1000b0000 + 876224
6 Video Test 0x00000001000c3f78 0x1000b0000 + 81784
7 UIKit 0x000000018aaaf014 0x18aa2c000 + 536596
8 UIKit 0x000000018ace9adc 0x18aa2c000 + 2874076
9 FrontBoardServices 0x000000018f0ecb68 0x18f0d4000 + 101224
10 Foundation 0x00000001863b6098 0x186300000 + 745624
11 BaseBoard 0x000000018c94f704 0x18c92c000 + 145156
12 FrontBoardServices 0x000000018f0e7bb8 0x18f0d4000 + 80824
13 FrontBoardServices 0x000000018f0ec940 0x18f0d4000 + 100672
14 UIKit 0x000000018aceaef4 0x18aa2c000 + 2879220
15 UIKit 0x000000018aceab9c 0x18aa2c000 + 2878364
16 FrontBoardServices 0x000000018f0fb7c4 0x18f0d4000 + 161732
17 FrontBoardServices 0x000000018f0fbb44 0x18f0d4000 + 162628
18 CoreFoundation 0x0000000185468544 0x18538c000 + 902468
19 CoreFoundation 0x0000000185467fd8 0x18538c000 + 901080
20 CoreFoundation 0x0000000185465cd8 0x18538c000 + 892120
21 CoreFoundation 0x0000000185394ca0 0x18538c000 + 36000
22 GraphicsServices 0x00000001903fc088 0x1903f0000 + 49288
23 UIKit 0x000000018aaacffc 0x18aa2c000 + 528380
24 Video Test 0x00000001001a02e8 0x1000b0000 + 983784
25 libdyld.dylib 0x000000019a8428b8 0x19a840000 + 10424