Problem with Dialog and Effects Audio | Voices mutes completely when out of sight

[Wolfb.7025]

I've been having a problem with the voice audio since some weeks ago. I'll get to the point.

Basically, I can only listen to NPCs and other sources of Dialogue and Effect Audio when I'm directly seeing them on my screen. If I, for example, turn my camera slighty to a side, the volume of the voice drops considerably. but when I completely turn my back on them, the voices mutes completely.

A great example of this are the sirens that rings on the control panel at the start of the Shattered Observatory Fractal. Once I turn my back on the control panel, the sirens mutes completely.

This is really annoying and I hope someone knows how to solve it... this is specially annoying on the new map since I can't listen to the meta announcer most of the times.

[Inculpatus cedo.9234]

I found this to be the case whenever ducking is in use. It used to be fine.Otherwise, it seems ok.