Wow! Not seen that one before. Yeah at first glance I would blame the gfx card. Looks like it's just the ground tiles not drawing properly. If you could make a video that would be super helpful?
I edited the video to give a little more context, bucause i forgot to setup the audio recording. Also notice how the "Made with with UNITY" appears for a bit after it has faded completly. I don't know if that happens on other computers, but I thought I'd point that out. Don't mind the stuttering, it's just the recording.