Odd Happening with 60Ft Hi Cubes

This is probably another one of those things that seem to only happen to me, but here goes. Today I put the 2 TTX 60' HC boxcars into a session and they no longer have ARN and the skin changer is gone from the Properties menu. It is only the 2 TTX cars, all the others are fine. I deleted and reinstalled them several times but still the same. Weird.

What is the KUID? And does the script library have a new version available?

This Has been an issue in T:ANE SP1 HF4 read here how to fix https://forums.auran.com/trainz/showthread.php?141153-Missing-ARN-Script-Issues

Simple enough to fix. Thank You.