Low Pet equip dissapears

Description of the bug: (optional screenshot/video):The pet equip dissapears from main pet and it's traded to another pet which shouldn't be able to equip it.
What is supposed to happen?: Pet equip should go directly to equip inventory tab.
Where did you find and/or notice this bug?: In orbis but it also happens in any other place.
A step-by-step guide to re-producing this bug (optional):
1) Have your pets without equips
2) Bring all your pets, make the third one the leader
3) Equip the Pet Equips to the respective pets.
4) Take off the Pet Leader
5) One equip will be missing and it will be equiped on the removed pet (even if that pet cannot equip it)
Extra information (optional):