Error when using the Biome samples parameter on any Minecraft version prior to 1.13

[ShowMe7777777]

Using the Biome samples parameter on any version before 1.13 will give an error:

This error occurs regardless of Biomes selected for the parameter, and occurs regardless of what version is used. I assume the cause of the error is a Biome name conflict due to the flattening in 1.13, but I'm unsure.