Heya Coffe!
Oh, yes, I have the same issue as Xzrono in getting the next phase of the story going when choosing Beileph as the means to progress choosing "Let me speak to the Older Brother" rather than "Let me speak to the Merchant Leader" or "Let me speak to the Queen's hand". That is when the Bestiary first shows the option to request talking with the Beileph. We can have the initial conversation with him (I asked about his work), he babbles, then leaves in a rush. Every time I go there again to see if the story can progress he just pops his head out to ask the worker "Have we received word from the envoy-?" and once he sees the PC he turns away and slams the door and the worker basically kicks the PC out with an apology. Asking the worker to pass on the message to Beileph asking for him to support the Transient One also has nothing happen to progress the story line. I thought I had to get Samuel to level 100 to proceed (hint: that isn't a requirement! Haha!). I've tried going to the merchant guild but seeing his sister Beisel isn't an option when one chose Beileph as the means to progress the story so the PC can't challenge her to a duel. I tried going to the forest to sleep so the game registered time has passed (I don't even know if that is a mechanic but I thought I should try that just in case). It didn't occur to me it's potentially a bug. Hmmm...
Thanks!