Xbox Wireless Controllers are glitchy on Amazon Fires

I was playing Minecraft on my Fire 7 and I decided to try connecting my Xbox Controller to my tablet with Bluetooth then play Minecraft with it. So I paired and connected my controller to my tablet; everything was fine, then I open Minecraft, taking forever to load as usual, then I'm at the main menu; still working fine, but when I got into the game, THIS is when it got WEIRD!!! If I press the LB, Minecraft thinks I pressed the Back button. If I press RB, Minecraft thinks I pressed the Start button. If I move the RS down, Minecraft thinks I pressed down the RT. If I press the LT or the RT, nothing happens. I'm 99% sure this is a Minecraft problem, because if I press the ACTUAL Back button in a browser on the same tablet, it actually goes back a page.