I just bought a fragment, I got charged 150 shadowed ethereal coin and 250k status but the item didn't appear in any slot. If it's intended to directly upgrade the Heart of Luclin on purchase then it failed to upgrade. The only info I can think might be relevant is that the Heart of Luclin wasn't equipped when I purchased the Fragment. I've heard some chatter about it failing and that zoning helps, but no joy for me there. It's late, I'm tired and hoping I've missed something obvious edit: There's some chatter on Discord about this not working if the Heart of Luclin is not equipped.