Pixie / Unicron Spawn Bug ?

[Falbaleux]

I guys, i've got a problem in my world :
Pixie and Unicorn don't spawn in my Hallowed, the biome is mix with snow and an old meteor which is mined (to unspawn the meteor head).
Does someone know if there is a problem or if i have to change world ?
(sorry fpr my bad English, I from France)
Thx you for answer !

[*loafy]

Not sure if you mean they dont spawn AT ALL or they just spawn very rarely...
Maybe you could try going underground and mining a lot of hallowed blocks, then placing them on the surface of the world near dirt and stone. This can make a surface hallow biome and spread it through the other mundane blocks. Also, hallow wont make your NPCs move out so its okay if it spreads near your house

[joe0price]

If they are not spawning, it must be because you don't have a pearlstone surface (maybe it got wiped out after the meteor). The hallowed biome is not actually required to spawn hallow enemies - all you need is a pearlstone surface.

[Falbaleux]

Thanks for your answers guys ! I will try tonight ;)

[-273.15]

I replaced the first layer of snow with a pearlstone block, and pixies began to spawn