Souldn't Easter egg get saved?

[Matuzz]

I did the Easter egg and got achievement but the EE progress seems to be not saved.

There is no lights in pylon and I get quotes from Richtofen even though I made his side.

I wonder if this will effect future Easter egg completion and I need to do it again :?

[83457]

Did you do it local? That saves nothing.

Not sure on custom.

[Matuzz]

I did it in Custom, there is no local in PC version.