The user referenced columns in a table within the individual x, y, size, and color fields of a scatterplot. When a filter is applied to the visualization (as is with page filters in view mode) the viz errors BUT if you pass the complete table to the scatterplot as the "outputs in pages" it doesn't and a warning about the filter not affecting the output is shown. We should also show this warning in the first instance as well if the filter isn't the same "size" as the values used in the fields.