2.41 - Acolyte wierdness?

Was observing a game between NE and UD on Two Rivers. The NE AI took the centre expansion (which the NE AI freed up). I noticed that the UD AI had four Acolytes sitting in its base doing nothing. I can only presume that they were going to expand to the freed gold mine, but why it had continued to build acolytes after the mine was taken I have no idea, they certainly never left the base.

Been seeing that before, and reported it in another thread. When you see such acolytes, try hitting one of their buildings 5 times, enough for 5 acolytes to run and repair it. Notice that after they repair, they go and mine on the nearest Haunted Gold Mine.

Thing is, there was no haunted gold mine (besides the one in their base which was already haunted). Since there were four, my initial guess is that one acolyte had gone to the centre to haunt the mine (and got killed) and the other four were produced to help haunt it, but there was no mine for them to haunt. Mind you, I never saw an acolyte move to haunt anywhere.

One of those four would build stuff, instead of an acolyte from the mine being used. The other three just sat there.