I would like to know the maps where runner chests drops (except mausoleum hardly find buddies to run with) most often, except bronze ones, I was looking for Silver and Gold runner chests for jewel lixers.

I tried to run a bit of Tindirin/Glint Caverns/Underhul & Nordr/Kraken Isles/Shuyal and I never get any runner chest. or am I just getting 1million% unlucky?