I want to use a BasisCurves prim to define a path for a camera movement, using an action graph.
I drag the curve into the graph, selecting ‘Read Prim into Bundle’. The output of that node is an ‘outputs prim bundle’, which I feed into a ‘Point on Curve’ node. I get the U Value for the node from the playback time, divided by 60.0. Unfortunately, the point on curve node does not seem to work well with the bundle, logging

‘Failed to find prim in input bundle with necessary curve attributes’.

My understanding is a Bundle is a collection of Prims, so, would’nt you have to ‘pick’ a Prim out of the Bundle before connecting to Points On a Curve node?