I hope someone can help with this, it's probably something simple but I just can't see it! Ds, who has Autism and is non verbal, goes on youtube on his tablet and when he watches a video, covering it are the symbols for fast forward, rewind and pause and the picture is dimmed slightly. There's a little cross to exit which gets rid, but as soon as you touch the screen it reappears on the video. I can't shift it permanently so I'm assuming it's something in settings but I can't find how to turn it off. As he's non verbal he can't tell me what he's done.
I'd be so grateful if anyone can help it's driving me bonkers 