PE Version: Legendary Phoenix Arctic Adventure Crash

Not entirely sure on the technical data above - but Minecraft PE for Amazon fire 7s crashes every time we try to open the new Legendary Phoenix Arctic Adventure. Been using PE for a couple years on this platform & boy does it have a lot of issues! Haven't seen the same glitching or crashing on iPhone or consoles. Just got new tablets in hopes of would resolve, but disappointed that the brand new world crashes the game every time.