I find a bug with Menagerist Goblin

Hi, I am a player of the Asian service. I just found a bug.
I encountered and eliminated Menagerist Goblin and found that one of the pets he dropped was a pet I already own.( buy the way, he dropped the two of “Overseer Lady Josephine”)

Then I use one of them, the other Overseer Lady Josephine is stuck in the inventory, can you help me solve it?
Thank you so much.

Please remove your email. This is a public forum.
The best way to get rid of something like that is to create a new character, transfer the item and delete the character.
(if you have an open slot)

OH, sorry. I just removed it.