How sequence controls Niagara communicating through chaos

I’m tested now,I communicated to Niagara via Chaos,In the form of chaos cache, the broken chaos was successfully controlled with sequence。But Sequence has no control over Niagara。In my project, the Niagara particle effect is available after running, but it can’t be seen in the preview, and the Niagara particle effect should be triggered after chaos runs. Does it have anything to do with the selection of data sources? I wonder how can I control Niagara with sequence? I need to render this effect.