Just wanted to loop you in on this. Not sure where the issue lies.
https://www.curseforge.com/wow/addons/atlas-classicwow/issues/34

Looks like the map file names were renamed for Classic, so I'll have to update AtlasQuest Classic to match. This an AtlasQuest issue. I'll put out an update shortly to correct it

Okay, I just uploaded 4.11.60 for Classic which should correct the issue. This was a quick fix as I'm racing the clock before I have to leave to go to work, lol. Let me know if there's any problems.