Rex vocal problem

So, I was PvPing on Panjura for the first time with my adult T. rex. I was with a mixed group of carnivores, and other players were attacking us for 30 or so minutes. Every time I made the aggressive call, my Rex made the friendly one, which is right next to it. I played both, making sure my joystick was not slipping, but both played the friendly call.

the friendly call came out

The aggressive call would've been heard.