Fix bug #1664 by @Areloch

Engine/source/T3D/tsStatic.cpp

@@ -860,6 +860,7 @@ void TSStatic::unpackUpdate(NetConnection *con, BitStream *stream)
       stream->read(&mRenderNormalScalar);
 
       stream->read(&mForceDetail);
+      mPlayAmbient = stream->readFlag();
    }
 
    mUseAlphaFade = stream->readFlag();