I have the same or similar issue. Upgrading from 3.10.5 to 3.12 the holdings tab show nothing. In the administrative part all the info show right.
Lubuntu 12.04 Koha 3.10.4 to 3.12 Installed with debian packages Saludos. _______________________________________________ Koha mailing list http://koha-community.org [email protected] http://lists.katipo.co.nz/mailman/listinfo/koha
