Critical Issue: Assistant Not Responding on Some Calls
Hi Vapi Team,
I’m experiencing a recurring issue on some calls (roughly 3-4 out of every 10) where the assistant does not behave as expected.
Here’s what’s happening:
The assistant begins the call by playing the “First Message,” but it seems to bypass the LLM entirely — it feels like the assistant isn’t “turned on.”
The caller responds, but the assistant either:
Takes several seconds to generate the next message, or
Says nothing at all, despite the caller continuing to speak.
Eventually, the system triggers the “Are you still there?” message and then ends the call after 30 seconds, as if no interaction happened.
I’ve checked the call payload, and in these cases there’s no transcript or dialogue history — it looks like no conversation happened at all.
It seems like the LLM isn’t being loaded properly on these calls, and the assistant is defaulting to system fallback behavior.
Could you please look into this urgently?
Call IDs:
5baa70e8-9b5c-4878-bb93-25a06f03265b
33cc60ef-4a86-4c19-92f1-ad83101ba137
8c8129a4-f101-4ea0-a09b-a15a5ceb785f
72926141-3f19-46d7-a55e-1947e0c0d8b7
These 4 happened within 3 minutes.
Thanks,
Lukasz
@OLEYO
I’m experiencing a recurring issue on some calls (roughly 3-4 out of every 10) where the assistant does not behave as expected.
Here’s what’s happening:
The assistant begins the call by playing the “First Message,” but it seems to bypass the LLM entirely — it feels like the assistant isn’t “turned on.”
The caller responds, but the assistant either:
Takes several seconds to generate the next message, or
Says nothing at all, despite the caller continuing to speak.
Eventually, the system triggers the “Are you still there?” message and then ends the call after 30 seconds, as if no interaction happened.
I’ve checked the call payload, and in these cases there’s no transcript or dialogue history — it looks like no conversation happened at all.
It seems like the LLM isn’t being loaded properly on these calls, and the assistant is defaulting to system fallback behavior.
Could you please look into this urgently?
Call IDs:
5baa70e8-9b5c-4878-bb93-25a06f03265b
33cc60ef-4a86-4c19-92f1-ad83101ba137
8c8129a4-f101-4ea0-a09b-a15a5ceb785f
72926141-3f19-46d7-a55e-1947e0c0d8b7
These 4 happened within 3 minutes.
Thanks,
Lukasz
@OLEYO
