Extra 1 achievemnt not registering?

[Soeffingdiabetic]

-85% with space guy, tried ending early and did a full run and no achievement get. Anything im doing wrong, tips?

[AnorexicDugong]

Have you already obtained the Darkasso Relic within Room 1665?
If haven't, it's accessed by typing "forbiddenbox" inside Secrets menu, you need to get the Relic first before unlocking other Darkanas

[Soeffingdiabetic]

i asked the reddit sub and they said the same thing, this solved it, thanks for the reply. Just completed the achievements again.