My TV keeps glitching / going black with the Fancy Sync Box?

Try these quick troubleshooting steps

Turning the Variable Refresh Rate (VRR) setting off, in the resolution settings of your Xbox or PS5
Turning the Variable Refresh Rate (VRR) setting off on your TV, in the settings
Turning "signal input plus" off in your TV settings (if your TV supports this and the VRR fix didn't)
Turning your TV's "gaming mode" off on the TV
Turning 4K upscaling off on your TV
Making sure your TV is producing a maximum resolution of 4k 60hz

If these all fail, please contact support.