Time: ?

Context: Voice actings of certain instances like Comet of Ahnket and Celestial tale mini chronicles not stopping after leaving them.

Expected: Voice actings should stop playing when player left instance.

Observed: Unlike most instances from vanilla and other expansions voice actings from given instances are not ending upon leaving them and sometimes keep collapsed and mixed with each other if player enters new one.

Repro steps:
1) Join any new mini chronicles from 4.0 content
2) Complete it and leave instance.
3) Notice that voice acting continues instead of stopping.