Are the Cosmic Yolk objectives progression-locked?

Childclown

I have an uncollected alt, and I only got 2 of the cosmic yolks, and do not have an objective for the third one.
(I may have already done it, in which case I'm just missing a yolk. The only special objective I have is the Battlegrounds vtd one.)
Is it bugged? I saw another post on here a couple days ago about others missing their third egg, any resolutions or updates?

TatteredSail

I’m valiant and missing a yolk , no answe on the other posts talking about missing yolks