Pipeline with llamaindex streaming reponse does not work

[Zeeeeta]

I am using llamaindex with Open WebUI pipeline, following the example on https://github.com/open-webui/pipelines/blob/main/examples/pipelines/rag/llamaindex_pipeline.py

However, if I try to use streaming reponse like the example, returning with "return response.response_gen" Open WebUI is unable to display any result and leaving the chat as below

There is no error.

Tried to run llamaindex streaming response locally with "response.print_response_stream()" does print the result word by word.

Any help would be appreciated, thank you.

Edit: My bad, my logging of debug messages caused that.