Just as an update. I called the MP number to use a GPU on an LH flight. She said it's electronic now and that the 1K agent could upgrade me. Long story short, after being passed back and forth, they confirmed it still isn't operational. They fedex'd me paper certificates to use (UA Codeshare too)
One thing though, they put the UA confirmation number on the cert, not my LH one. Will this be a problem??