Not displaying root alias when exporting to JS

[lewbam]

I have a Figma file with my root variables, then a component file which uses semantic variables that reference route variables. When I try to export the semantic variables to JS, it references the hex code instead of the route variable name. Then if I select 'use root alias' it then replaces the semantic variable name with the root variable name and not the hex code.

Is this a bug and this root variable name should be replacing the hex code when that option is selected?