Voodoo hut 5 was allowed to finish normally, i.e. by allowing the countdown to reach 0s on its own. Just as the new Voodoo hut appeared, the Barrington Buildwright froze in place; I expected him to jog back to his Builder Hut. You can see him there, next to the staircase.
Hey matey I just checked your base and it appears normal now. I wonder if it was a momentary issue. My hut completes later today. I'll check it as well. If you still see the builder I would chime back in and let Midoki know. See ya back at the base. TiGeR