[Koha] records 'lost' since koha upgrade

Hi, I recently upgraded our Koha to the newest version. Since this upgrade, any new records I enter cannot be searched or edited. I know the record exists in the catalog somewhere b/c the barcodes are used and considered unaccepted duplicates if I try and use them for a different record. Also, with records that existed before the upgrade, if I do any editing the changes don't show up on the initial search results page. (The changes do show if I go into the record.) Any suggestions? Could it a permissions thing? Thanks