Three failures in an iteration cause the workflow to stop progressing

Hi everyone,
We are currently encountering an issue with the iteration node in our workflow. In some cases, out of 109 iterations, 3 fail; in other cases, several LLM tasks keep running indefinitely. As a result, the workflow does not proceed to the next step.

We have already tried configuring all three error-handling options — “Remove obnormal output”, “Continue on Error”, and “Terminated” — but the workflow still doesn’t move forward.

Has anyone else encountered a similar issue? Are there any known solutions or workarounds?
Thanks a lot in advance.