Boss is dead. Can't leave to finish map

Red wall in the way

Side note. Can we please get a full reveal of extra content on map boss kill instead of getting all check points

You really do need to provide substantially more information if you want QA to investigate.

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Which map are you in? If you used the /bug chat command while in the map, what ID did you get?

I don't know how you expect them to investigate a problem with an area if you don't even tell them which area you're in. Anything you don't tell them, they aren't going to know.