PC survivor's voice bug

Mikasa

• At first I thought the stridor wasn't working but this is not the case
• PC
• 
  
• I can't hear a survivor who doesn't have a perk iron will
• 
  
• 1. here the survivor has no perk Iron Will https://www.youtube.com/watch?v=esth1I4gla0&t=214s
• 2 here the survivor has a perk Iron Will https://www.youtube.com/watch?v=Tw-Senjlk_8
• 
  
• several times recently

Mikasa

the problem is not with the stridor

survivors have a bug. My character didn't have a perk iron will and it was not heard when it got a hit and when I treated myself immediately the character started moaning

here's the proof

https://youtu.be/8K_2DzxrW08