The Phaaryl Megalith

Is it intended that once you've beaten all the bosses and leave the map that the empowered rune chests disappear when you re-enter? I looted the bosses and a few of the runes, left to empty out and came back to the loot the rest but they're gone. Also even though Ive beaten the bosses the arena still counts as being in a boss fight. Super cool map but kinda bummed about missing out on the loot :c

Yep same happened for me, full inventory had to go town and sell quickly only to return to the tresured runes that had dissapeared, extremely demotivating and lame to happen when its first of these maps you find and play after 120 hours of playing :)!

Yeah same happened to me :/ Also why we cant make tp in boss arena?