Okay, so, I looked into this one. It appears that after I was test-playing and fixing the events, I accidentally deleted the switch change in the 3rd obstacle. I don't exactly know how I managed to do that, but my apologies :D. While I was at it, I also checked the remaining ones. The fixed version of the fixed version should go up in a few minutes.
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Thanks again. Is the fight against the Successor, which I managed to reach, winnable right now? My party members didn't get a single turn in, presumably because of the Frozen status that is applied at the beginning and throughout the battle. And with "didn't get a single turn in", I don't mean that my party got slaughtered in one turn; the Successor just acted 20x in a row until my party was annihilated.
The fight against the Successor is supposed to be somewhat difficult, but not impossible. Since you basically got stun-locked, I changed the way how its passive aura behaves as well as the chance to be inflicted with "Frostbite" when the Successor uses them. Should still be a tough battle, but now you won't get stun-locked so easily anymore. :)
The new version will be up in a minute.