Hi,
I could not reproduce your exact scenario, when I renamed the fact view the changes gets reflected in its respective associations .I would suggest you to check the number of associations created in VDP Administration tool by calling the internal stored procedure
CATALOG_ELEMENTS(null,'Associations',null,null,null,null,null,null,null)
When you drop the associations in VDP Administration tool, click on reload in Information service tool > Association tab to reflect the changes.
Hope this helps.