Hello, I have a strange problem and could need some help to debug/solve it. I'm running Koha (installed from packages, Version 17.05.01.000) on Ubuntu 16.04 in a LXC/LXD container. I've created the container on my computer and setup everything. I could import my records and they got indexed fine. I can run a full zebra index rebuild without problems. Than I copied the container to our server and that's where the problem starts. Everything is still working fine except the indexing. When I try to run a rebuild (with koha-rebuild-zebra -v -f instance) I get this error for all of my records: .error retrieving biblio 9100 at /usr/share/koha/bin/migration_tools/rebuild_zebra.pl line 683, <DATA> line 755. I can view the record fine in OPAC and intranet. Could this be a permission error? Is my data corrupted somewhere? What can I do to get a more detailed error message? When I look at line 683 in rebuild_zebra.pl it looks like that koha/zebra can't parse the raw marc21 record. We just recently started to use Koha in our school and the more I use it the more I like it! Best Regards