Receiving unhandled NULL exception (396734)

I came across this crashbug when playing our multiplayer FPS game (ParadisePaintball) with 10 other players, among them 1 other guy running on a ppc.

After a few minutes everybody who was not on a ppc recieved a NULL exception at the same time and crashed hard! (on editor, windows/mac web build, firefox/IE/Safari)
Without the ppc guy in the game, everything was fine.

Beside this I experienced similar behaviour when there are too many audiosources instantiated on runtime - unity crashed persistently after load, but only in standalone or webbuilds.

However, this can’t be the related to this case because it’s 100% ppc related, and happening in the editor, as in standalone and webbuilds.

I can’t find any other trace in the logs, anyone experienced this before?

Best,
Thomas

Stacktrace:

Receiving unhandled NULL exception

*** Launching bug reporter due to crashbug.
Receiving unhandled exception

*** Launching bug reporter due to fatal error!
Obtained 29 stack frames.
0   Unity                               0x004b4ef2 start + 4923638
1   libmono.0.dylib                     0x02a6e7ea mono_unhandled_exception + 218
2   libmono.0.dylib                     0x029caab0 ves_icall_System_Security_SecurityFrame_GetSecurityStack + 981
3   libmono.0.dylib                     0x029e46fa mono_arch_handle_exception + 96
4   libmono.0.dylib                     0x02990632 mono_create_jump_trampoline + 2120
5   libSystem.B.dylib                   0x9248709b _sigtramp + 43
6   ???                                 0xffffffff 0x0 + 4294967295
7   Unity                               0x007e9344 _ZN25PxsBroadPhaseContextArray16updateBroadPhaseEv + 54
8   Unity                               0x007d6b70 _ZN10PxsContext17updateBroadPhaseVEv + 98
9   Unity                               0x00720937 _ZN5Scene10runSubstepEv + 167
10  Unity                               0x00720d09 _ZN5Scene8simulateEj + 175
11  Unity                               0x006a6a47 _ZN7NpScene12executeSceneEv + 329
12  Unity                               0x001b2184 start + 1766280
13  Unity                               0x001b622b start + 1782831
14  Unity                               0x00425964 start + 4336488
15  Unity                               0x0042c9ea start + 4365294
16  Foundation                          0x958c0267 NSDecimalCopy + 16519
17  CoreFoundation                      0x91af6b45 CFRunLoopRunSpecific + 4469
18  CoreFoundation                      0x91af6cf8 CFRunLoopRunInMode + 88
19  HIToolbox                           0x93dc8480 BlockUntilNextEventMatchingListInMode + 989
20  HIToolbox                           0x93dc8299 BlockUntilNextEventMatchingListInMode + 502
21  HIToolbox                           0x93dc810d BlockUntilNextEventMatchingListInMode + 106
22  AppKit                              0x940e13ed _DPSNextEvent + 657
23  AppKit                              0x940e0ca0 _NSUpdateMenuRefWithChangedMenuItem + 2250
24  AppKit                              0x940d9cdb _NSSetViewMultiClipDrawingHelper + 4866
25  AppKit                              0x940a6f14 NSApplicationMain + 574
26  Unity                               0x00499220 start + 4809764
27  Unity                               0x00002efe start + 258
28  Unity                               0x00002e25 start + 41

I happening very like now to me.

You found the solution for this?