weekend_warrior
Banned
There might have been a dormant worker in the capital city preventing you from moving the engineer into the city. I've run into this problem a lot but don't know enough about Civ to know if there's a bug or if it's just the (automated) workers running out of stuff to do and heading home. When that happens what should I be doing? Deleting the unit or is there some action I can direct them to do that the automatic AI workers won't do?
No it wasn't a worker, it's just a "feature" in the game that a great engineer can build any wonder in 1 turn except the utopia project.
I never automate workers, when I run out of land to improve I put 1 to sleep outside each of my cities. You'll need them again to improve a late game resource, build railway, or fix a pillaged tile, so I won't delete them.