Recently I started a new world and it keeps crashing at random times, sometimes I've only been able to play a few minutes and and sometimes I've been able to play over an hour.
MCPE-12465
Windows 10 Edition crashing randomly
Resolved
Invalid
0
This may actually be a genuine bug, but this is not a support forum, and we don't usually help with crashing issues. However, you may want to join the folks over at #minecrafthelp on espernet, or go to minecraftforum.net