Battlegrounds lesser and greater trinket bug

Hello! I recently played a battlegrounds match and selected the “souvenir stand” lesser trinket which says “copy a greater trinket effect”, and selected the “Nether pendant” greater trinket, which says “give minions in the tavern +1/+1, upgrades every 4 times you take damage”

But only one instance of the Nether pendant is active, and the other one just doesn’t do anything, wasting my lesser trinket choice and costing me the otherwise won game.