Syndicate Crafting Bench bug

Completed the Research stronghold location today, and one of my reward areas held the syndicate crafting bench. The option was to add a veiled mod to a rare item. I had a pair of rare boots in my inventory so I placed them into the interface to see what options I had. Unfortunately, the boots were a veiled item that had yet to be unveiled via Jun. As a result, I couldn't craft them and removed them from the interface. However...it no longer allowed me to place any item into the interface. Trying to do so just displayed the placement region as a red box and refused to accept the item(s). I used 3 portals going back and forth to my stash to get as many different types of rare items as I could to test this out, and it simply refused to allow me to place any item for crafting. Not sure if this is a bug or by design, but it sure felt like a bug...and if it is by design, it's a very unrewarding design.