I'm not sure if I am stuck because I need to do something or if there is a bug.
I'm playing Contradiction, the time is Friday / after 8pm. I have talked to everyone except Ryan. The hint is telling me, "There are 4 things you haven't asked Ryan about yet." This is correct.
My problem is that Ryan is nowhere to be found. I have tried every location multiple times. I think I should be able to ask Ryan questions since the hint is telling me to.
I'm not sure if I need to get a contradiction before Ryan will become available. I've looked through every statement and don't see any contradictions beyond what I've already found. It's certainly possible that I am not seeing a contradiction.
I am not adding more details so as not to spoil it for someone else. Please let me know if you need me to provide any details and I'll put them in a spoiler box.
Be kind, for everyone you meet is fighting a hard battle.