Hi, I have a Koha 3.4 database and when I add a new bibio and link it to an existing authority: let's say I add a 100 tag and use the existing authority Patterson, James which is also used on 3 other bibs. Once I save the record and let the zebra indexing run (-z) the number of bibs on the authority is now 1, and it only links to the new bib. The link to the other 3 biblios has disappeared. If I do a full reindex then all the authorities link to zero bibs! Has anyone else seen this behaviour? and Where is that link between authority and biblio stored ("Used in 3 biblios"). This database showed the same behaviour in version 3.0.6 and maintains the behaviour when upgraded to 3.4 I thought that the problem lay somewhere in zebra so I restored another database to the same Koha install and tested authorities on it and it behaves as you would expect. The number of bibs linked to the authority is incremented each time you use it in another biblio. Thanks MartinMac