How to Access Spline Source in BPs?


So I’ve recently come across trying to link Blueprint variables to a Niagara System Component and I had no trouble with floats and any other simple variables. However, I am having no luck getting this Spline to work.

I have seen people claiming that something like this should work, but it also didn’t, for me:

I feel like I need to set the Source somehow, since it is where the Spline should be set, but I tried many different combinations and had no luck with this. Was anybody able to properly do it?

Thank you!