We have a separate thread on the Oathrbreaker Knight not showing up that I think you've already found Pirlouit, but for reference for anyone else it's at
https://forums.larian.com/ubbthreads.php?ubb=showflat&Number=879177.Oh, and OP, I should have said. If oathbreaking works like in early access, the workaround for your looting problem should be to just get one of your party members to loot instead of your paladin. Have you tried that? (It doesn't mean a fix isn't required, but might mean you're not missing out on stuff in the meantime.)
