RuntimeError: This generation handle does not allow interruptions

[devb-enp]

Bug Description

I'm constantly getting error in sentry for this line
livekit/agents/voice/speech_handle.py in interrupt at line 110

if not force and not self._allow_interruptions:
    raise RuntimeError("This generation handle does not allow interruptions")

There's no manual interruption that is in the code from our side and the agent always runs on allow_interruption=False

Expected Behavior

This error only makes sense if i try to interrupt without the force=True flag while allow_interruption=False.
For internal flow, it shouldn't throw runtime errors.

Reproduction Steps

I haven't tried reproducing it as it doesn't seem to have any implication on the session. But the sentry is constantly recording this error.

Operating System

python:12-slim

Models Used

No response

Package Versions

livekit-agents[anthropic,assemblyai,azure,codecs,deepgram,elevenlabs,groq,google,hume,images,openai,resemble,silero,turn-detector]==1.3.3

Session/Room/Call IDs

No response

Proposed Solution

Additional Context

No response

Screenshots and Recordings

No response

[longcw]

can you share more logs as well as the traceback, and the agent configuration like if you are using the realtime model?

[rafallezanko]

Hi, I am getting same error logs for livekit agents in version 1.3.6. I use python slim 3.13.5. I have some responses with allow_interuptions = True and some with allow_interuptions = False. I am almost sure that the issue occur only for non-interuptible responses.

Please have a look at the following logs:

Error in _user_turn_completed_task
Traceback (most recent call last):
  File "/app/.venv/lib/python3.13/site-packages/livekit/agents/utils/log.py", line 16, in async_fn_logs
    return await fn(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.13/site-packages/livekit/agents/voice/agent_activity.py", line 1427, in _user_turn_completed_task
    await self._current_speech.interrupt()
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/app/.venv/lib/python3.13/site-packages/livekit/agents/voice/speech_handle.py", line 123, in interrupt
    raise RuntimeError("This generation handle does not allow interruptions")
RuntimeError: This generation handle does not allow interruptions