Came back to the game after a while away to explore the new 1.18 worlds, and found using more than two fingers on the screen at once causes some kind of glitch. If you're moving using the left direction controls, looking around the screen, and try to jump or grab an item etc, the character will lag for about a second and then do something vaguely similiar to the inputted action. It happens as soon as a third finger touches the screen, every time, and completely breaks your movement in the world 

As said, I've been away from the game for a while so don't know how long this has been broken, but if you want to move around the world with any speed at all, it makes the game basically unplayable. Don't think I'll be able to explore until it's fixed