Problems in the coliseum

In the coliseum on level 5 fought to with dedra meero and major partagaz, I stayed at 99% and they killed the whole team but it gave me the victory, and when I wanted to play again with dedra meero and major partagaz, it leaves me the team incomplete because it takes away the droid from the team and there are only 4 characters. Please fix the error, it already leaves me alone with 4 characters in the coliseum.

Thanks