The Scanner Room Fragments are indeed un-scannable right now. Im sure they just coded it wrongly for now and that itll be fixed soon in an update or maybe it was intended until they finish to code the actual room properly.
Sometimes it feels like you cant scan a particular fragment but its just that some of them are glitchy and moving around them kinda fix the issue, wherein theres this very little ''sweet spot'' where the scanner tool will detect the fragment so you can scan it.
(sorry for the double-post but I wanted to keep this list separate)
I've revised the list of wrecks to try to illustrate the apparent randomization of blueprint fragments we've seen. Please remember that this list is based on observation, not examining actual game code, and that future experimental builds can change things on a moment's notice. In other words, YMMV.
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Subnautica Wrecks, Lifepods, and Blueprint Fragments
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As of Experimental Build 30892
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Notes
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1) You may have to begin a new game to see these fragments. Older save games,
whether stable or experimental, may not be completely updated automatically.
2) Blueprint fragments are semi-randomly generated. A wreck will tend to have
fragments of specific types, and will tend to include ones for blueprints
you have not already completed, but exact types and quantities will vary
from one game to the next. There can even be no fragments at all.
3) Fragments *may* respawn eventually, players have reported mixed results.
4) A laser cutter is required to reach some rooms in wrecks, primarily those
beyond Safe Shallows. Sometimes an alternate path will reach blocked rooms.
5) A light source such a flare or flashlight is very useful to spot fragments.
6) Fragments for furnishings and lights are not listed, they can be found in
many different wrecks.
7) Sometimes fragments can be found on the sea floor near or under the wreck.
8) Sometimes supply chests can be found around the wreck or lifepod.
Wrecks Biome Coordinates Typical Fragments Found
------- ------------------- --------------- -------------------------
Wreck1 Grassy Plateaus 286, -74, 444 | | Bioreactor
Wreck2 Grassy Plateaus -627, -56, -7 |-->| Cyclops Hull
| | Mobile Vehicle Bay
| Propulsion Cannon
| Water Filtration
| (can also grab NS2 poster)
Wreck3 Koosh Zone 940, -198, 593 | | Cyclops Engine
Wreck4 Underwater Islands -100, -177, 881 |-->| Modification Station
Wreck5 Mountains 697, -331, 1207 | | Power Transmitter
| Seamoth Upgrade Console
| Stasis Rifle
| Terraformer
Wreck6 Dunes -1448, -332, 723 | | Cyclops Bridge
|-->| Scanner Room (can't scan yet)
| | Thermal Plant
Wreck7 SeaTreaderPath -1174, -148, -744 |-->| Cyclops Hull
Wreck9 Mushroom Forest -644, -95, 784 | | Scanner Room (can't scan yet)
Wreck8 BloodKelp_Trench -1208, -332, -390 | | Cyclops Pressure Compensator
Wreck10 Grand Reef -283, -222, -784 |-->| Moonpool
Wreck11 Grand Reef -896, -408,-1435 | | Nuclear Reactor
Wreck12 Safe Shallows 85, -40, 113 | |
Wreck13 Safe Shallows -150, -20, -227 |-->| furnishings fragments only
Wreck14 Safe Shallows 160, -27, -253 | |
Wreck15 Safe Shallows -33, -25, -398 |
Wreck16 Safe Shallows 343, -16, -190 | | Mobile Vehicle Bay
Wreck17 Kelp Forest 64, -24, 376 |-->| SeaGlide
Wreck18 Kelp Forest -317, -73, 222 | | SeaMoth
Wreck19 Kelp Forest -374, -74, 296 | | Solar Panel
Wreck20 Kelp Forest 305, -53, -319 |-->| furnishings fragments only
Lifepods (no fragments in Lifepods, some have Supply Chests)
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Wreck21 Lifepod #12 Safe Shallows 26, -22, 302
Wreck22 Lifepod #3 Safe Shallows -151, -1, -404
Wreck23 Lifepod #19 Kelp Forest -261, -68, 5
Wreck24 Lifepod #13 Safe Shallows 314, -36, -112
Wreck25 Lifepod #4 Safe Shallows 75, -28, -95
Wreck26 Lifepod #13 Kelp Forest 263, -54, -410 (yup, two #13's)
Comments
Sometimes it feels like you cant scan a particular fragment but its just that some of them are glitchy and moving around them kinda fix the issue, wherein theres this very little ''sweet spot'' where the scanner tool will detect the fragment so you can scan it.