I have a first gen iPad Pro which is about 18 months old now. Just recently it has started displaying black lines randomly as pictured, a few seconds later it reboots. I am not sure if it is a software or hardware problem as it happens intermittently and they disappear as soon as the iPad resets. It has not been dropped as far as I know. I have tried updating to the latest iOS 11.3, but no improvement. Any ideas what could be up with it? I tried searching on Google and Youtube but couldn't find a similar issue.