There's also an issue too with Steam users due to the Steam purchase and registration process not always passing information over to N3V's servers to...
I've run into the coupler breakage and derailments caused by reversed locos. I wasn't sure what it was at first and I falsely blamed some small beer...
I would check that your account is in fact logged in. These are payware routes that require a login in to My Trainz account in order to be available....