Battle for Claw Island Bug
I haven’t been able to reproduce this after several attempts. Are you doing this solo or co-op? Taking any shortcuts that you can think of? What is your interact option if you select Mira? (If it decides you’re closer to another NPC it might give you a greet or talk for them, unless you specifically select her.)
(edited by Jeffrey Vaughn.1793)
This sounds similar to a bug I was getting a long time ago. I’m not entirely sure, but it seemed to be caused by jumping off the wall instead of walking out through the gate to talk to Mira.
I don’t see any tripwires or routes that can affect it, but talking to Trahearne immediately after talking to Mira looks like it can cause issues. Interact with Mira once, then wait about 2s for a scene to start. If you talk to Trahearne right away, it’ll prevent the scene from playing and stall the story step.