The converters are the same I ever used. They are able to convert the eeo file you changed back to a fully functional lwo and also the other way back. Must be some kind of error I created
I will redo the changes again step by step and after each change try to convert the model. It's no big deal. I only made the textures for the hoops left and right side of the overhead-panel, the left door-lock and the HUD-lens. I can redo this and take a look at what point the problem appears.
Sadly I had not made any backups of each single change, but it was not so much work that it is a real drama.