I have the same issue with craftable i415 gear. I opened a ticket today in technical probs… sent in a few screen shots and spent almost an hour with a GM (Vladosiky) who was able to put my gear on, however it would remain red in the item slot as well as the armor icon on the right side of my screen with the crafted items showing as broken. I get the error message as “You will never be able to equip that item” when I try to equip them.
After going round a few times with the gear and the GM, they said there was one other reported issue (a sheild). It is now clear many of us are having issues with craftable gear. The GM is pointing the Devs to look into it, but I was also told to point anyone else with similar issues to this thread as it was the first known post regarding craftable gear: Can't Equip Crafted Shields.
One other thing, which may or may not be relevant but I changed races a week or so ago and thought that may also be adding to the gear equip conflict. By chance has anyone with this issue recently changed race?