Ah it's a puzzle, much like in Super Mario where you have to choose the correct path in the castle or it loops forever.
Thanks from the video! Too bad that you never got to see the battles or the cool stuffs that would happen after the corridor.
Fun fact: All your complaints are actually due to RPG Maker Unite (yes, even the scar going into the hair and the weird tilesets, there's no shift-click to prevent autotiling feature so everything autotiles with everything even when you don't want) and so on.
I hope you give it a new try because after the Glitch Corridor are some really interesting logic puzzles and such.