Kulmaks Invitation glitch

hey just wanted to know why every time i run Kulmaks Invitation after beating him 4 times i always have to town portal out and i always end up back in act 2(town) instead of my hideout

there no way back to the well of soul

as i would like to know why i can run 2 in a row i always neeed to go back and do a map before i can do another invite

let me know if this is made that way or is it something you guys working on