A lot of OP7 Pro users, myself included, are having ghost touch issues with NFC on and in certain apps.
To check if you have the issue, download CPU-Z, turn on NFC and go in to the CPU-Z app. Let your phone sit in the app and see if you get the notification shade freaking out of switching to other apps. My phone switched to the clock app, then I switched back to CPU-Z and my notification shade started opening and closing.
With NFC off, I don't have any ghost touches.
To check if you have the issue, download CPU-Z, turn on NFC and go in to the CPU-Z app. Let your phone sit in the app and see if you get the notification shade freaking out of switching to other apps. My phone switched to the clock app, then I switched back to CPU-Z and my notification shade started opening and closing.
With NFC off, I don't have any ghost touches.