[Koha] Source of acquisition

Hi all We're seeing some strange behaviour here (though not really that serious): When we order a book (for example) from an existing vendor, we get the booksellerid number (instead of the vendor name) appearing under Source of Acquisition in the item record. Has anyone else seen this behaviour? Does anyone know whether this might be because of some setting we might have switched? We're on 18.05. With kind regards from the Dalton McCaughey Library Team Carlos Lopez Dalton McCaughey Library | 29 College Crescent, Parkville, VICTORIA 3052 Ph: 03 9340 8888 ext.1 | library@dml.vic.edu.au | library.dmlibrary.org.au