Crash during siege

The game might crash when taking control of on ally during a siege.

It is a Null Reference exception that gets thrown somewhere down in the engine within Native.dll. I don't have access to anything meaningful with the debugger as its all [extenal code] and calls to the Native library from which the decompiler can't show anything useful from.

I have not found a consistent way of recreating the exception. It happen to me twice while I played in the campaign, and once in a custom siege scenario. All three times happened when I used the "automatic ally control" (default key binding U).