Despite translating all 30 Eridian Slabs (Playing through the Main Story Missions and getting the key component to translate the Slabs) the achievement doesn’t unlock on Steam. Is there something I’m missing?
Had the same issue. Try scanning the one in Tannis’ lab on sanctuary a few times, worked for me.
I’ve been trying to do that to the point that the animation disappears (Where the character pulls out the “thing” aka “Eridian Translator”) and the character goes “strange, I’ll come back for that later” or something similar