Can an Easter egger change egg color after molting

[Michelle Vlahovic]

I know this has been asked before. But I am very confused. I have an Easter egger who has laid light cream colored eggs for the past 8 months. She’s been molting for a while. Now I also have an olive egger who’s eggs are consistently the same olive color. I went out today and this egg is noticably BLUE. Everyone else lays brown or white eggs. So who laid the blue egg!?!?!?

I have heard that with Maran breed they lay darker eggs at the beginning of the season and lighter brown near the end so maybe that's the case with yours?