D2 armour picker creates fictional armour

Pretty much what the title says. I input the stats I'm looking for and everything looks good. Then I go to look through my vault for the exotic I need and it just doesn't exist. At first I thought it might be because the armour isn't masterworked yet, but that's just not the case. I have no idea how im supposed to stop this from happening lmao. It's just making up armour pieces that I don't have.