Audio bug as source or related with Travel to East quest block

Disclaimer: I only have some correlation and my findings are speculative until I achieve consistency.

So far I have been able to brick 3 characters with Travel to East, while not completing other quests, like "Go through the portal to travel to Cruel difficulty", altough those can be completed if the trigger is done.

On some long sessions specially, when there is several dialog NPC audio lines one after another, there is an audio bug that starts as an stutter on the first portion of the phrase and sometimes can cascade to a complete audio and music loss.
Whenever I found it, quest triggers, specially when you pass to other acts will not activate and complete the quest related.

The culprit zones where I was able to find this more frequently are Count Oghams final form, Black chambers & Doryani, and specially, with somewhat consistency to reproduce, Aggorat, when the priest talks about Atziri.

Aggorat is the worst one since, usually after killing the priest and going to the Blood Trials zone, it usually cascade into a total audio loss bug.

So far, it is the only meaningful link between my bricked characters, since Travel East can be bugged either on Normal or Cruel (right now I'm trying to brick one char on both). It also makes sense, since there is a cinematic video between Act 1 and 2 and somehow when you speak to the Hooded one to travel east, it appears to complete (as shown in the quest log portion of the UI) but if you check it just after it, on the map, it will show incomplete.

If someone else is able to reproduce, please reply.

I will /bug once I'm able to trigger the audio stutter bug consistenly. And I will update this thread if I manage to brick both quests on the same char.

Have a good one.

Triggered Audio Bug, after picking up Una's Lute and the character said its line. Recovered itself, did not bug out at Count fight (Cruel).
Bug number: 1,053,246,004.

Triggered Audio Bug, at Count's fight (Cruel) after redoing fight. Same session.
Bug number: 1,813,110,152.
After that fight redo, audio bugged on transition scene to Act 2 (Cruel). Completed the quest, didn't bug, character already with Travel East (Normal) bugged.
Bug number: 2,987,575,292.