Is there any chance you are using the Small Multiples feature in your plot? If so, @JeffUK was right the plot is being sorted alphabetically based on the y-axis instead of numerically based on the x-axis and there's no way to fix that. It's a limitation of the Small multiples feature: https://powerbi.microsoft.com/en-us/blog/announcing-small-multiples-public-preview/ Limitations: support for small multiples sort by measure