Snow on top of nylium turns the nylium to netherrack

The Bug

When snow layers are placed or generated on top of Crimson Nylium or Warped Nylium, the nylium block will turn into Netherack over time.

(was originally: )
(im not english) i dont know if this is a feature but snow on top of both nylium turns it into netherrack, i made the exterior of my base with warped nylium in a snowy biome and it started to snow when it stoped snowing i went to clear the snow and all the nylium turned into netherrack. sorry for my bad english