No Reg's (shots not registering) on Valk

When you're shooting a valk that has just shot her missiles you will no reg her for about 10 seconds... (i one clipped a valk twice after she shot her missiles i clipped her twice and my shots were not registering AT ALL until about 10 seconds later i was able to clip her again to kill her, same thing was happening to other people going against her as well.)