Mint textures from PC on blocks their not supposed to

Three bugs happened here, what they basically were was "mint textures", "players don't see the same world" and "world switched from survival to creative"!!! This one i call "Mint Textures" is what i believe to be the cause of the other two. What it causes is the textures are mixed in with other textures that i recognize from Minecraft PC. Not only do i know that Mojang may have plans to add those things in the future[ 😉 ], but i also know that the bug is caused when I go into lava in creative on a Samsung Galaxy Tablet 2. The world/device belongs to my brother, and he has this structure with lava in it. He has confirmed to me that it is certainly caused by going into the lava in this structure, i will later post what his structure looks like and maybe the coordinates(Mojang should add that coordinate locator thing to help with future bugs). He has done this glitch before and successfully quit the game without harm, but after excessive attempts of doing this, it has messed up his other world saves by changing them from survival to creative, making other players see different chunks, and created several copies with no names on them.