Nightingale PTR Portal
Not sure quite what triggers it, and leaving and coming back to the realm in question seems to reset the interference (as does destroying a completed piece and adding it back, on further testing), but when blueprinting the new tileset, it sometimes will not allow you to later add material if you didn't add everything all at once to begin with.
I double checked this against adding a piece of crude to a connected foundation and could add material there, though that didn't complete all pieces. That attempt suggests it has to do with the foundations since they didn't complete even though the material was on my character, only to work when I walked over to the foundation and looked at it directly after the walls and ceiling pieces went in.
Seems some glitches are in play in completion on the new tiles where it doesn't always register items present that could be used or transfer them to all connected, placed construction.
