I'm have a world with 8 bit height.
During editing I enter 33 values for CustomHeightControlfor my "Flying Islands" biome.
/tc reload works normally.
But after server restart I see zeroes (0.0) in <...>BiomeConfig.ini

Sorry, I have used symbolic link for biome config directory for 3 worlds and one of them was 7 bit.
This causes changes in number of double values and clearing of them.

Closed.