Background Noise when sitting in hideout

There's some weird ominous noise in hideout (and also other common areas) that happens after playing for awhile... idk if its a necropolis soundtrack that isn't cancelled when going to new areas or what, but it's interfereng with my hideout music and its very obvious.

also still plays when exiting to character selection and reloging in. had to exit client to reset the music

Same issue, but for me I can identify it as the Vaal side area ambience (but not the instrumentation and singing that kicks in later in the Vaal side area), and it only starts once I do a Vaal side area. I haven't tested if it stays at character select, but client restarts stop the ambience for me as well.