Donut charts with tests do not render unless the user has passed a vector-style table to the feature, that is, it's impossible to pass any table output with a column in it that doesn't represent a single statistic. The "normal" donut chart allows the selection of a table with columns, and will then throw an error because there are too many columns to work with. At least, in this version, it's possible to specify which column to use in the chart, and it will then render as long as only one column is selected. However, that version of the visualization doesn't support significance tests. In short, the data inputs to donut charts with tests need to be more flexible, and/or the regular donut chart should be updated to show significance results.