I know I have two macho brace with me this time cause I'm using it in EV training and it suddenly dis appeared after a wild battle battle? 

 

Thanks, I have double check it and its gone

Hello @Ashren. My apologies for the inconvenience you experienced.

 

Could you tell me in which map you were training in? What Pokémon you were battling? What Pokémon were you training and which moves it had?

I was training my rotom dito, pawnriard and bunch of pokes at route 31 & ruins of alph

Route 31 is home to Nuzleaf and Shiftry, both of which can have the ability Pickpocket. Pickpocket steals the targets item when it makes contact.

This is what most likely happened to you and how you lost your Macho Brace. Since this is how the ability is intended to work, we cannot restore your lost item.

Though that may be frustrating, please try to understand. If you have any further questions, please let me know.