I hope you are well. We need to disable the transition type: interruption go back. It is causing interruptions, unsuccessful calls, and unpleasant conversations.
Two things that reduce how often it fires, while you wait on the feature to be implemented:
Keep agent turns short. interrupt_go_back triggers on interruptions, and long agent turns simply get interrupted more often. Cutting utterance length lowers the trigger rate on its own.
Check your interruption sensitivity. If it is treating background noise or backchannel sounds like mhm and yeah as genuine interruptions, you will see this fire constantly on calls that were otherwise going fine. In our experience that is more often the real cause than the transition logic itself.
One question that would help narrow it: is it firing mid sentence while the agent is still talking, or after the caller has finished a turn? Those two point at quite different fixes.
We are a Diamond Retell Partner (https://agento-ai.com/) and have tuned around this on live flows. Happy to look at where it is firing in your calls if that helps, just message me. Unsuccessful calls is not something you should be sitting on for six weeks.