Extra Numbers On Side of Cab - How Do You Get Rid Of?

For some reason, some (not all) of mainly my SD40-2 and ES44AC engines have began having the number 3210 in large white text pasted on top of the engines actual number on the side of the cab. There's also some engines that have a box underneath the side-cab window that says "missing text." I've attached some photos showing you what I mean.
Could someone please tell me how to correct these errors?
Thank you.
Could someone please tell me how to correct these errors?
Thank you.