Creeps can't travel from E4N7 to E4N8
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there are two exits areas from E4N7 to E4N8, I've walled off the right one. When I send a creep up to y=0 on the left one, the creep doesn't flip over to the other room. creep.pos.findClosest(FIND_EXIT_TOP) keeps pointing to the position to the right of the current position. When the creep is at (16, 0), it points to (31, 0).