Replacing a track gmt file

I want to replace a certain gmt model with my own custom one for an existing track that's already in the game. After packaging the mod I try to load it in game, but suddenly the game crashes over halfway through the loading screen with no errors. Is there something I'm missing or doing wrong?

 

Did you repackage the track with a new name etc? You can't modify the existing content.

Try creating a trace file. Does it work in devmode?

 

You have to edit track.scn too

Cut old .gmt string and add new object .gmt string

P. S. Before that i suggest to use devmod for track modding. You can simply cut, add, edit track and load it in game without package files

 

What is a track gen file? Tracks have SCN files (for objects) and GDB (for track information).

 

Yes .scn sorry

.gen is for cars

 

Step by step, how would I go about that?

 

Go here: https://www.studio-397.com/modding-resources/
And find those to read:
> Packaging Tutorial v1.0
> Track Technology v3.0
> Cheat Sheet

You need to learn about track folder structure, and extract everything accordingly (check track SCN file for correct folder name), best in ModDev folder, so you can test it.
There are many tutorial in the first thread of this forum section: Track Modding Resources/Tutorials/Scripts/Plugins

PS: Trace file created under rFactor 2\ModDev\UserData\Log, but not everything is logged, many things can lead to crash.