Niagara not loading singular frame from Houdini (I don't want to export frame range!)

Hiya I’m trying to export a single frame / file from Houdini particles to Niagara. I’ve been able to successfully do this with frame ranges of the completely still particles, but now that I’ve moved onto larger particle setups (1-10million points), I’d like to find a way to load only one frame/file in Niagara, and have it be the base position for Niagara to do some simulation on top of.

I’m using the houdini to niagara pluggin, and have watched what feels like every video on this topic but there doesn’t seem to be a way to do this? Or am I missing something obvious? Thanks so much!