MysticalPhenomenon

So today I was Playing reborn with my friends and i couldn't beat corey so one of them said hey borrow my butterfree it will help you out so we trade and i beat corey now when i traded with him i still had the butterfree and he also had the same butterfree and my charmeleon was gone and now recently my friend tried to trade me his swoobat shelly's gym and it disappeared Again Just Wanted to share this issue if it helps