Archaeological Authority not unlocking

[Gorfinhofin]

I have gone through the whole list of 131 scannable objects twice now. I am positive I have scanned them all, but the achievement progress says I still have one left to scan. Has anyone had problems with this achievement unlocking? Did I really just miss one? I thought I was very thorough. I had the idea that maybe it doesn't register the scan if you close the interface too quickly? Any help would be appreciated.

[Dentorhedge]

Well, maybe scanning the scannable things that are not listed as necessary to scan, scanning duplicates, and holding the scan up a little longer may help.. but I have never heard of this before.

[Vilurum]

One option if you're desperate enough to look behind the curtain:

Fire up SAM, look at the stats page for La-Mulana, and see which of the STA_OBJECTS_(insert number here) entries has a 0 as its value instead of a 1.

They're not in the same order as in the guides (which are ordered more by approachability), but if you tell me the number I can tell you which specific one the game thinks you're missing.

If you're not that desperate, keep trying. Consider making a checklist of some sort with two columns: one for scanning something and then a second one for when you've successfully saved since then. (That'll help deal with the scenario of "of course I scanned that! ... oh wait, then I died and didn't scan it next time.")

[Gorfinhofin]

Yeah, okay, I'm desperate enough.
STA_OBJECTS_80 is the one I'm missing.

[Vilurum]

80 is the "9" door in Endless Corridor D-2.

[Quint the Alligator Snapper]

Are there any of these features that become permanently missable?

[Vilurum]

For the achievement? Yes, quite a few.

[Gorfinhofin]

Dagnabbit, I scanned all those doors multiple times! Thanks, Vilurum. You've saved me a lot of time.

EDIT: Okay, scratch that. It's still not unlocking. Do you have to scan it before lighting up the door, by any chance?

[Vilurum]

No, that shouldn't matter, so long as you get the pop-up scan window with the clearer picture of the symbol.

I checked my notes though, and #80's definitely still that 9 symbol (the last one you move through to unlock the exit to that floor).

It could be that your save file already has credit for scanning it even though the achievement tracker doesn't, and the achievement tracker only updates credit when the local game data goes from "haven't scanned this" to "scanned this" (but it doesn't check it if the local game data goes from "scanned this" to "scanned this again").

Easiest way to test would be to run a new save through the early and midgame until you get that far. Then save beforehand, and try scanning it. I do know that achievement only cares about "have seen it ever" and doesn't care about doing all 131 of them in a single playthrough.

[Gorfinhofin]

I just started up an earlier save, unlocked that floor, and scanned the door. No dice. I also tried all the other doors again just for good measure.

[Vilurum]

Well, I suppose it's possible (though unlikely) that your Steam achievement stats could number them differently than mine... still, I'm pretty stumped here.

[Gorfinhofin]

I finally got it. I was replaying the game one more time and it unlocked after scanning the Mushussu mural in the Spring in the Sky. Which I DEFINITELY scanned multiple times before. One last mystery for the ages. Thanks, La-Mulana!

[an Aki]

That's ironic considering that was the last thing I scanned when I first got the achievement... and i was stuck on it for days.

[chaobreaker]

Originally posted by Gorfinhofin:

I finally got it. I was replaying the game one more time and it unlocked after scanning the Mushussu mural in the Spring in the Sky. Which I DEFINITELY scanned multiple times before. One last mystery for the ages. Thanks, La-Mulana!

I had this problem too. My achievement went from 81/131 to 131/131 after scanning the rightmost Mushussu in D3. I guess the left one is bugged.