Super Weird bug for an Android Build

TLDR; I have a weird bug where I can "see through" my game. I think I know why it happens, read below to see.

Working on a game right now for mobile devices, atm it's just for Android. I was wondering if someone could tell me why I have this bug. I wish I could submit a screenshot while also being able to put text like this but Reddit only allows for one or the other so I guess anyone who wants to see it, I could screenshot it. Basically I can "see through" my game so that when I select my game in the app menu screen on my phone, my game is transparent and I can see the apps through the game. I have a work-around, but I was wondering if someone could shed some light to this. I think it has to do with the fact that in my main camera's background, its alpha is set to 0, but I don't get the same issue when running it on pc. Also even if I set the alpha to 255, when I press a button or highlight it I can still see through the game. Any reason as to why this is happening?