Ihave 2009 engineers edition i wanted to change a load on a couple of wagons so i went into content manager like i always have found the wagon i wanted to change went edit open in explorer changed the kuid number to the new load save and lauched trainz but when i went into surveyor to put the wagon in with the new load the wagon had turned black like all the colouring had been taken away i put the wagon on a track even went to driver but still black i have done this procedure to change loads always in 2006, 2004 with no problems this is the first time i have done it in 2009 edition and this has happened has anyone got any ideas