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Retell AI

call id: call_b1fdea6296490a2d79e4587267a

When Retell sends parallel function calls and our backend returns successful results for all of them, the Gemini 3.0 Flash LLM fails with the following error:

Unable to submit request because function call 'default_api:lock_state' in the 11. content block is missing a 'thought_signature'
This causes the voice conversation to hang/fail after the function calls complete successfully.

This might be an integration issue for the new flash model.