I'm having a problem with bedrock aka Windows 10 edition of Minecraft with my cobblestone generator using redstone clocks and pistons and it keeps giving me this weird missing tile block, also lava sources vanish randomly, when they're not supposed to unless transformed into obsidian by water

I wasn't even making obsidian, you can't push those with pistons anyway. I really hope Mojang fixes this, because having to go out and mine every time just for cobblestone would bore me. Part of what Minecraft so great is we can build factories, without these, the game would be less interesting and I hope Mojang's end goal isn't to eliminate automation completely just because a few were demanding or asking for nerfs. Thanks.