Guardian blueprints should not come out from obelisks, Will just wrote about it.
I'm so conflicted about this right now!
I'm harvesting 42 Epsilon Data Scans at the moment, and obv getting lots of blueprint fragments in the process. I feel bad because I know that'll happen, but it's unavoidable unless I just say "not doing any guarding module stuff til it's fixed!"
Conversely, I wonder why it's numbers like 8 weapon fragments or 4 module fragments... I get the design choice to make us go through solving the puzzle to get this information, but getting us to do the same thing 8 times to get the result seems like a grind for the sake of a grind (and I most definitely have done the two for module and weapons... the fact the ship one doesn't seem to exist at any of these sites yet suggests there may be other types of sites to be found still.
Also, has this cool atmospheric music always been at guardian sites? I've never heard it til now!