Using binned.
4.5.1-0+UE4 7038 3077 402 5
Setting breakpad minidump AppID = 346110
Steam_SetMinidumpSteamID:  Caching Steam ID:  76561198009276164 [API loaded no]
Assertion failed: IsValid() [File:Runtime/Core/Public/Templates\SharedPointer.h] [Line: 658]

Signal 11 caught.
EngineCrashHandler: Signal=11
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.