[Koha] Reset database, rebuild zebra problem.

Greetings, 3.12 Debian packages. I wished to remove bibs and items for a Koha instance, I truncated the biblio and biblioitems tables but searching still showed records (but no items). Running koha-rebuild-zebra -f -v instance did not change anything. After *much* searching I tried ./rebuild_zebra.pl (with and without sudo). Complained about not finding C4. I think this was wrong and I have broken permissions. I have just read Robin's email about a similar issue in July but not sure how to recover from this one. One way forward might be to remove the instance and recreate with backup. Would this work? Sorry for the trouble and I appreciate the assistance. Clint. -- Clint Deckard RD1 Takapau Central Hawkes Bay, New Zealand.