Stuck and can't start trial - help? [FIXED]

[wii kissing channel]

Spoiler alert for all the trial evidence.

I've looted all the jades' lockers and talked to everyone. I cleaned Tagora out and got the evidence exonerating him, Tegiri's internet history, and Tyzias's trial notes (though those aren't an item in my inventory). I spoke to Tirona and got the eavesdrop intel. Talking to everybody is one stock response now, meaning I must have exhausted all their dialogue, and there's no more evidence to get.

But Tyzias still says I haven't done ♥♥♥♥ and I'm not ready to start. When I hit the hint button, it tells me "if Tyzias says you're not ready, you're not ready" - but when I click again, the hint says "You're ready to start the trial, talk to Tyzias."

Is there something I'm missing still? Is my save bugged?

**[FIXED: For anyone having the same issue, there's a fifth locker you can open - Lanque's - and it's opposite Daraya's. It's the only right-side locker door you can open and I never thought to click on it.]**