Gemini is path B. If you've already played it, try replaying the ending or at least the part it gets found.
It didn't register for me that I had done it but a quick run through the last day unlocked it for me.
If this still doesn't work; play Route Tyson Path B from the start. But it shouldnt be neccesary cause Grizz already fixed the bug.
Thanks for the help. Replaying Ty's Path B was what I needed!
