Sort order not adjustable by dragging in Vizlib Bar Chart v.3.1.2

Sort order not adjustable by dragging in Vizlib Bar Chart v.3.1.2. When an element is dragged to another position, the position in the list changes, but the sort order number does not change. The sort order in the figure also doesn't change.

Temporary workaround: use 'sort by expression' in the first order element, and fill in the desired masteritem between double quotes.