Hello everyone, We are running koha 3.20.4 in a development VM and have a problem when making single character searches (i.e. searches that would normally return a lot of results). Oddly enough, our production koha which is on v3.2.2 does not suffer from the same issue (please see the attached screenshots). I followed the instructions in http://wiki.koha-community.org/wiki/Troubleshooting_Zebra and confirmed that the zebra daemon does indeed return a result set when making a single character search ("f α" for example). So, I think the actual problem must lie with one of the Perl scripts that process the data fed back from zebra/MySQL. How do we figure out which Perl script is choking on invalid UTF8 data? Is there a way to find which biblios/authorities contain invalid characters and to correct them? Thanks in advance for your help. Kind regards, Andreas