Each column has a synthetic gap that decides which bridges sit above and which sit below. Move Up ignored the gap, so the treble bridge’s Move Up stayed disabled. It can cross the gap now. The human had already seen the disabled item.
Each column has a synthetic gap that decides which bridges sit above and which sit below. Move Up ignored the gap, so the treble bridge’s Move Up stayed disabled. It can cross the gap now. The human had already seen the disabled item.