Precursor 'craft' button is gray
You have already crafted this item.
#1 Commander/Player NA: Promotions
You can only craft a precursor one time per account. You already crafted it so you can’t craft it again…. sorry…
Aww, OP .. did you go through all that for the first two tiers twice? I agree, unless the tier one and two items are useful in and of themselves (and worth the effort and resources), likely you shouldn’t even be able to begin again on an already-made precursor.