New bug with sound linked to location or spetsnaz Firebird?

Was up in Stenmyra safehouse, the church and immediately meet a Spetsnaz Firebird when standing at the graveyard and in 30 second they where two of them, without any sounds? Even tought “Have they made them stealthy now?”

First time I died and chose a respawn in the safehouse the sound from the gun from one of them appeared and second time I died all sound started to play. With a stutter every time just before the sound started.
Killed them, exited the game and loaded it again. Same place and before I left the graveyard there was a new Spetsnaz Firebird, this time with sound and a big freeze every time just before the honking or guning started.

Was my first Spetsnaz class after the update and I’ve without any problem killed several Scout and Soldier class firebirds after the update.

Did check my GZ files in Steam without any errors.

PC over recommended specs on Steam
Solo at Stenmyra safehouse with spetsnaz firebirds.