Strongbox with Unique modifier doesn't grant Unique item

Hey,

i had a Strongbox in my Map and once i put my Orbs on it, it had the modifiert: Contains an extra unique item (or sth like that).


Once i cleared the strongbox, i didn't got any unique item. Just a "Chance Shard)


idk if that counts as unique item

ID: Bug Report ID: #1298113962