posting after trying to run the boss a few times in a multiplayer session with friends; whenever we try to summon him, his fists come down, but he's shown as having spawned very very high up on the map. his main body never flies down, and after a few seconds flies up and out of bounds, and then despawns with the "Atlas is no longer after you." message.
any idea what's happening here? is this an MP issue? should mention that the server is being run with Magic Storage and Thorium, and only those two.