Affects Version/s: Minecraft 1.14.1, 20w10a
Fix Version/s: None
Environment:Windows 10 x64 Home
Java 1.8.0_51 x64
I noticed that the caves generate differently in 1.14 vs 1.13. I ran into an unusual formation while caving, I thought it was some error at first. I later regenerated the world in 1.12, 1.13 and 1.14 to check for this. To my surprise, this cave does not even generate in earlier versions of the game and in 1.14 the anomaly remains after a few times regenerating the world.
I ran into this while caving in another location and noticed that if the chunk has buried treasure, it will not generate caves below.
Here is a seed to help view it easier: -3745970657198777088
coordinates: -163 53.00 246
There are other examples in the world if you have time to track down treasure check and look below for caves.
Thank you for your time.