Anyone else experiencing problems with the kill counter?

At first, I didn't pay much attention to it, but if I kill an enemy some of the kills are not counted

At first, I thought okay maybe my teammate had that last hit while I was shooting them, but I play duos sometimes, and I happened 3-4 times while I was alone, killed 2 enemies but one kill was not counted at all

Anybody experienced or experiencing this?

Somehow since this LTM came out the game feels really unstable