I just noticed today that when you go to do a service on the Clinchfield all the lettering and numbering are all blurry. Also everything in the cab of the SD40 & F7 are all blurry where you can't read anything. This all happened right after the creators club came out. I never had a problem with reading anything on this route previous to this.
Unfortunately this looks like a bug introduced with the latest update. It seems to occur after browsing Creators Club. When I quit and open the game again, the level of detail goes back to normal.
That did fix it. I hope they get it fixed soon because that will get annoying having to go back and forth everytime.