Oliveira returned to Betis on 21 August following his loan spell, nine days later than he was requested, which caused controversy among the club's board of directors. The delay was caused by an unplanned schedule change made by CONMEBOL, which postponed the Libertadores final match in one week, and his contract was due on the day after the previous final match date; he wanted to play on the decisive match and tried to reach an agreement with the Andalusians, even with a special allowance from FIFA, but the Spanish team would not cooperate and he was not able to take part in the game.