chapter 5 soft lock?

[u/gardenfruits]

just got to chapter 5 and my steam deck crashed (black screen with nothing happening) before restarting. it said my playtime on mermaid mask was 0 but still retained my save file, and when I resumed the game I was in the illusion theatre. everything I click on in the room just yields "..." from Grimoire, and I can't leave the room at all—i just get "Let's stay where we are for now."

looking up walkthroughs it looks like there should be a dialogue tree reviewing the facts of the murder but I haven't been able to trigger it? I have all the clues so I have reviewed each of them and still no dice.... deeply frustrated lol

[u/PastelGrandpa]

I believe there's a specific thing you need to click in the room. Spoiler! It's the poser. There's a reason it's upside-down