Minecraft Pocket edition recent update renders app useless with new dpad ui

Firstly. The d-pad ui was updated for no apparent reason and the new version is buggy and almost unusable as instead of navigating the world you spend half the time cleaning up random placed blocks as the d-pad is glitchy.

Secondly, the item selection bar at the bottom of the screen no longer works as nothing can be selected instead random blocks are placed instead.

please fix this as the recent changes made were unnecessary as there were no previous issues with the games ui.