Waystone - Cant leave Boss arena after defeating

Bug Report ID: #2762335039

Rustbowl Map Waystone 4 with Boss.

- Killed the Boss
- created Town Portal
- went to hideout to sell some loot/free inventory
- took Portal back into the map
- can't leave "Boss Arena" to finish off the remaining map
- Map still incomplete

Happened to me as well, I notice there was also some add unkilled that was buged in surrounding areas. But eve nafter I manage to kill it. I was still closed and portal to the "arena" was from other side of barricade...

Any asnwers from Devs? We still face that issue. I entered arena, killed the boss and cant go out of arena to end with others