One of the features of patch 9.1.5 was that alts would have a certain shortcut. Adaptive Alloys (rank 5 and 6 ) should unlock account wide. Yet it unlocked on this main character but not on my alts. I have enough of the research, that’s not the problem. The red text says I need to buy Adaptive Alloys, but I already did buy it.
Edit : After some more reading, we unlock the ABILITY to buy these alloy research unlocks, regardless of reputation. But we still need to buy them on our alts to unlock rank 5 and 6.