Since the June 2023 release of Power BI desktop, you are no longer able to reorder fields in the filter pane. This issue exists in both Power BI desktop and Power BI service. Please fix it.
edhans
Community Champion
Community Championzapppsr - this post indicated it would be the a July build. The one today was another June build. You can see that in your Help, About menu.
Reorder fields in filter pane is broken - Page 2 - Microsoft Fabric Community