MCPE 0.12.1 build 4 you can't mine with picaxe so you can't get stone so its not playable fix plz

The phone I'm running on is a Motorola HD razor 4.4.2 and minecraft pe build 4 0.12.1 you can't mine with any picaxe so can't get stone and its not playable plz fix now just release a quick patch plz and thank you