Bug with Blood Echo or bug with War Of Attrition

I meant the requirements for blood echo to have affected all three other survivors that were injured and I didn't get the challenge to complete. Nobody was in deep wound and all remaining survivors were injured when I hooked the 4th survivor. This should have activated Blood Echo and applied all 4 of them with the exhaustion status effect but either the game did not recognize the survivors being exhausted at the same time or the perk didn't work. I was playing Legion on a coldwind map, can't remember what the name was but I don't like it, not thompson, field or cowshed.