Everything works fine in 1.7.9 but the newest snapshot always crashes the client after an irregular time. It only happens in worlds with terrain of old beta versions.
MC-57837
Game crash after converted beta world is loaded
Resolved
Incomplete
1
Incomplete without a crash report from (
[minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]). Please attach it so that we can diagnose your issue.