What's the current process of exporting animated particle sim from Houdini to Niagara?

I am struggling to get a csv file export from a simple POP solver setup in Houdini, does anyone have a chance to shed some light on this please?

I’ve attached my file, but it’s essentially just a sphere with particles emitted from its surface, I setup the needed Niagara attrs and add the Niagara ROP after the Dop I/O. My particles also disappear when viewing the ROP? They’re fine just before that.

Hope someone has an answer, I’ve been pulling my hair out a bit here. :confused: