I am trying to follow a tutorial on how to visualize a vector using the visualize node but the vector won't show up

Add> Point Wranggle (v@dir = {0,0,1} > visualize (Type: Marker / Style: <Vector / Attribute: @dir)

Is there something Im missing in display options or so?
Would you so kind to help me through this dumb issue please?

Should be (Style: <Vector / Attribute: dir), attribute's name without @.