DownloadHandlerFile.progress for existing file

Hello guys, Im using downloadhandlerFile to load and save all bundles at startup.
Then I am checking for the new versions of bundles in my own catalog system, if remote catalog has been changed - update existing bundle.
Bundles are always at Application.persistentDataPath / bunddleName.assetbundle path

When I load them at start screen - I show % of loading in textbox.
This works for first loading, but if I want to update Existing bundle - my progress is always 100% - is that because file already exists?

How can I always have proper progress for updating existing file? Should I save it to temp location, and then move to proper loc, overriding existing file?

Nvm, it was a problem in mine code, thanks!