Game ruining error

Every time I attmept to open the game, whether through the GPx patch or as you normally would, the game fails to load the circuit.

I decided to go through all my Jam files, and I noticed that texture 3, Jaguar00 in gp3jams always had "top" value set to zero (where as it should be 256). I reset the figure, save, and restart the time.

Every time, the game crashes and the figure has been reset to zero.

This happened after I placed a new livery into my game, however, i did this manually in a way that has always worked for me (converting bmps into jam files using jam editor). I fail to see how this could cause the problem.

Any help would be appreciated.