biomeNameSpawns doesn't work as intended

[Insane96]

using isBiomeNameSpawnsBlacklist as true with biomeNameSpawns empty works as expected
.json File: http://pastebin.com/Gpp0Nm2i

but as soon I get isBiomeNameSpawnsBlacklist to false and add a list of biomes with "biomeNameSpawns": ["Birch Forest", "Birch Forest Hills", "Birch Forest M", "Birch Forest Hills M", "Forest", "Flower Forest", "ForestHills"], it spawns nothing, in any biome.

Spawning the structure with /pillar-spawn works as intended