follow-up here that after fixing another issue (Upgrade to 3.1.1-2 from 2.4.8 PHP Fatal error: Call to a member function getStatus() - #84 by ajnyga) and then running the upgrade script in two parts (added a die() just before the convertQueries, made a backup of the db at that point and then continued the upgrade from that point) the convertQueries function finished without problems…