title: NVTabular Graph: Duplicate Inputs in Workflow Graph
body: <p>I am trying to build a Workflow in NVTabular. My input data is simple and does not need much processing, however, when I try to create a simple graph I seem to get duplicated input structures. This is causing errors downstream when I try to fit the workflow to my dataset (That only has one 'user' and one 'item').</p>
  <p><a href="https://i.stack.imgur.com/jSVnW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jSVnW.png" alt="Output Graph Visualisation" /></a></p>
  <p><a href="https://i.stack.imgur.com/Yydhv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Yydhv.png" alt="Workflow Fit Error" /></a></p>