Scatterplot: error message in console with pkg update

[AARON-CLARK]

(latest versions of all packages)

In the Population Explorer with CDISC data:

The graph generates successfully, but this error is in the Console:

Warning: Error in vectbl_as_col_location2: Can't extract column with `value_y`.
✖ Subscript `value_y` must be size 1, not 0.
  155: <Anonymous>
  154: signalCondition
  153: signal_abort
  152: cnd_signal
  151: <Anonymous>
  139: eval
  138: eval
  137: .transformer
  135: <Anonymous>
  111: plotly::ggplotly
  109: %||%
  106: modify_list
  105: config
  103: renderPlotly [C:/Users/twilson4/Documents/RProjects_laptop/tidyCDISC/R/mod_popExp.R#274]
  102: func
   99: shinyRenderWidget
   98: func
   85: renderFunc
   84: output$popExp_ui_1-plot_output
    3: runApp
    2: print.shiny.appobj
    1: <Anonymous>

Originally posted in #202

[tdwils]

Closed with #220