When I load up a world it crashes.
Comments 2
Thank you for your report!
Crashes and related issues such as these are logged automatically, and will be looked into further by the development team - thank you for your patience and understanding while we get these issues resolved.
If you need help or support you might like to follow a link below.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki
You need to give some more details, but there is already an update for beta .17. Update your game or uninstall and reinstall.