Images missing from Entries, but still on server Have a bit of an issue.

Recently, a site I work had its asset index rebuilt upon finishing for some reason all images associated to entries are now no longer attached. They are still on the server and in the database.

How would one go about linking these back-up as I don't fancy going through every entry to reassociate the image manually.

Thank you for your help.
Clear the caches after updating the assets index, asset indexing data at the very least, though I'd normally clear everything to be sure.