Castaway - can't leave arena

After defeating boss in unique map - Castaway - I can't leave the arena, thus not being able to find the treasure and complete the map :c

Bump as i've had the same issue today; couldn't leave the arena, got the powder keg, tried to log out/log in, and even tele'd to people. Someone suggested wait 15 mins for map to resent, now it says I've failed the map due to the bug!!! :/

Same here, I boosted my map and nearby tower to increase gold gained, cleared the map, killed the boss, but now the red mist thingy prevents me from leaving the boss arena, so I can't get the treasure. So much for pirate adventures :(

Same here in a group of 4 all stuck

Same here.
Killed the boss fast and now I'm locked in arena

same...
I made the bomb explode in the Arena. That loots no gold but, at least, le map is completed.