How do I get My Spline to work at Runtime?

How do I get My Spline to work at Runtime? It seems like once I Apply the “Set Start and End Node” the Mesh disappears, and spline isn’t moving with the cursor.

Been using this tutorial as reference: How to Move a Spline at Runtime in Unreal Engine 5 By Murnoth

And this is the blueprint I have:

P.S. I have set the Spline Mesh to Moveable too.