Apparently for some reason not all Hydra installations had this index. Another -1 for non-declarative schema definition languages.
KAPI7OEB4IMTZ763NS7L3223BBITMAF4QB4NDXUXL5LG2DIPDQZAC
TPNHTE5VJ36IPKMFENDERDBFBHLYFXOVNDLV2QSC4G5STPPMBLMAC
drop index IndexBuildsOnFinishedBusy;
drop index if exists IndexBuildsOnFinishedBusy;