Hello. Hopefully this is a good place to ask but, I just started working on a train mod and decided that I want to try to make it work from the technical standpoint before making the actual 3d model. Things are going well as the DMU is recognized by the game, has all the right properties, etc.

However when I spawn it in the game, it's completely invisible including the driver and passengers that I randomly added (all of which is showing up fine in the model viewer). Could anyone point me in the right direction?

I would suspect that the bounding box isn't set up properly but it looks fine.

edit: I got it solved. Basically the editor was automatically assigning ID 0 (the whole model) to a lighting group and then hiding it in-game.