Minecraft 1.12, Minecraft 1.12.2, Minecraft 1.13-pre9
I tried to load a world, and it crashed while loading, but the game did not close.
It only happens when the world is creating, and it only happens on some customized worlds.
(Happens most at preset "Caves of Chaos")
Versions before 1.12.2 It throws a crash report but Minecraft still displays "Loading world Building terrain"
1.13 snapshots It throws a crash report but Minecraft still displays "Loading world Perparing spawn area"
Sorry for my bad English.
MC-80036 Crash when generating world with certain custom preset