Pace is slow with R walking long paths, and the center pillar worked confusingly. Or did I miss something?
May be ¿did you solve it? Spoiler: Solution You just have to unlock the center pillar. There are three mechanism hidden.
@kayody09 Spoiler: Solution Every tower moves in one direction. In the black spots pull to the ground. You'll be able to hear something. Pull twiece to reassure. That will inlock that corner.