Model Designer bug

[Razyx]

Hi, I've found a bug on model designer (error message in the pic).



Ok, everything is around Drive Train option.

The first time you go to create a new model there won't be a problem:
Normal sequential steps would be; Drive type - Engine - Gearbox - Clutch...
Once you have clicked on Gearbox for the first time....



Now, exit from model designer (no matter if you save that model or not), and go in again to create another model (no matter what platform you choose).
You could do the normal sequential steps (listed above/pics) but now, after choosing the Engine, the Clutch option is always enabled (pic below), allowing you skip the Gearbox selection... and voila!