Got it that actually makes sense.
If the CEO confirmed it defaults to Arcana V2, then the issue is most likely on Vapi’s side: the UI hasn’t been updated and the manual model override isn’t wired correctly in their backend.
If you want, I can take a quick look at your setup privately and help you confirm the model being used, as well as fix the manual ID issue so it actually selects the right model.
Feel free to message me directly I can sort this out fast.