Can't Move In Throne of the Hegemon

[Umbri]

Literally JUST updated after saving in front of Nyx, ready to battle her. When I reload my game, post update, I'm on the same tile--just below the square in the center where Nyx stands--but it automatically moves me forwards in an attempt to repeat the cutscene, including having Nyx in her Giratina outfit and about two tiles above the aforementioned square. I've tried all 3 of my backup save files as well, and the issue persists. (Quicksaved a lot trying to prep my team.) -Umbri#2786 on Discord, in case I need to send my game file.

EDIT: Downgrading to 1.2.2 fixed the issue.

[Umbri]

Aaaaaand I accidentally hit quicksave while trying to try every button to get out. I feel dumb.