When I try to create a new super flat world with no structures, the game crashes.
Attached is the crash report.
Environment
Windows 10
Java 1.8.0_25
Linked issues
is duplicated by 7
MC-128754
Minecraft crashes when trying to create a superflat creative world
Resolved
MC-128773
Game crashes when creating a superfalt world for snapshot 18w16a
Resolved
MC-128816
Client Crashes when trying to Load a Super flat world
Resolved
MC-128873
Game crashes when creating a new superflat world
Resolved
MC-128989
Creating Superflat World crashes game
Resolved
2 more links
I had the same experience,it happens if you try to load up any superflat world,mostlikely because of the water block being removed,and the water level being unset in all presets,to my knowledge.