Hi Roger,
as far as I know the export file doesn’t ‘land’ in the project.
→ https://forum.dxo.com/t/pl6-0-ea-2-windows-hierarchies-of-projects-ability-to-drag-and-drop-projects-and-project-groups/25247/3
→ Unwanted virtual copies - #57 by Wolfgang
Like that, projects only have limited value.
Wolfgang