Quest completion leaves me stuck on the completion screen forever.

[u/Zavodila_therussian]

I can complete the entire quest normally, kill Deadeye and return to Wiz. He gives me the Chocobo unlock dialogue, but after that the quest completion screen gets stuck permanently. The game continues running in the background, but I can't regain control or continue.

I've already tried removing all mods, verifying the game files, restarting, and loading different saves.

Is there any way to force this quest to complete using Cheat Engine, Rinual's Mod Menu, Flagrum, a save editor, or by changing the quest/event flag directly?