Yesterday I made a factory reset on my Lumia 820 (with OS version 10.0.14393.2551). Then I installed the latest version of Minecraft 1.7 from Store. The application froze and crash down after the world is uploaded, look at the video on Youtube
Same problem with version 1.7.13.0 on devices:
Lumia 820 (10.0.14393.2485),
Lumia 830 (10.0.14393.2551),
Lumia 930 (10.0.15254.538)
Hello, the new version 1.8 is already OK. Great Job, thanks!