The default Track IR Center command hot key is F12.
The default range vox in AHII is F12.
When you try to talk on range vox, Track IR is trying to re-center at the same time. This also causes the screen to stutter.
The Fix: re-map Track IR hotkey Center command to another key. I used Scroll lock.
The other Track Ir default hot keys are also AHII hotkeys. I changed my Pause command to my keyboard Pause/Break key, and my Precision command to Print Screen.