title: plotly - multiple traces using a shared slider variable
body: <p>As the title hints, I'm struggling to create a plotly chart that has multiple lines that are functions of the same slider variable.</p>
  
  <p>I hacked something together using bits and pieces from the documentation: <a href="https://pastebin.com/eBixANqA" rel="nofollow noreferrer">https://pastebin.com/eBixANqA</a>. This works for one line.
  <a href="https://i.stack.imgur.com/kTxtm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kTxtm.png" alt="enter image description here"></a></p>
  
  <p>Now I want to add more lines to the same chart, but this is where I'm struggling. <a href="https://pastebin.com/qZCMGeAa" rel="nofollow noreferrer">https://pastebin.com/qZCMGeAa</a>.
  I'm getting a <code>PlotlyListEntryError: Invalid entry found in 'data' at index, '0'</code>
  <code>Path To Error: ['data'][0]</code></p>
  
  <p>Can someone please help?</p>