why all the sprunki ugcs are removed?

roblox just removed sprunki ugcs for no reason, they disappear.

removed ugcs:
durple
horror simon
oren
raddy
brud
pinki
jevin
vineria
wenda (white cat girl)
black (black hat guy)

still there in catalog:
oren (horror variant)
sky
brud (brown bucket guy)
oren (orange headphones guy)
grey (chill gray cat or grey sprunki)
funbot
garnold
mroona and wryum
bailey
aurelia
lily
tele
aqua
black (horror version)
kaski
black emo guy