I believed it was solved by brute force, and that the intended solution is unknown. There are theories that can be found online though. Some say it was linked with Fez 2, which was eventually cancelled.
@@wilko_3142 Yeah, I googled now some stuff. Surprised that FEZ developer did not reveal solution after 10 years, their behaviour is surprising. I really like first 2/3 of the game where it is cozy platformer, last part not so much.
It's a glitch that was patched years back, you have to patch back to 1.09 to be able to do it. Patch is available on speedrun.com iirc, if not then then the associated discord could help
It's a glitch that was patched years back, you have to patch back to 1.09 to be able to do it. I think the patch is on the fez speedrun.com resources page