Instead of Moldova hearing their own national anthem they got Romania's instead.
Tournament officials issued an apology for the incident, which happened before their opening match against Belgium in Sydney on Friday.
Moldova was one of the last countries to qualify for the event.
They're in the same group as Belgium, Bulgaria and Britain.
Liverpool eliminated as Atalanta book Europa League semi-final place
Atalanta progressed to the Europa League semi-finals despite losing 1-0 to Liverpool on Thursday as they triumphed 3-1 on aggregate to move one step closer to a first ever European final for the Serie A side.
Real Madrid knock out holders Man City in Champions League shootout
Antonio Ruediger scored the decisive penalty as Real Madrid beat holders Manchester City in an edge-of-your-seat 4-3 shootout victory to reach the semi-finals of the Champions League after the teams were locked at 4-4 on aggregate following extra time on Wednesday.
Kimmich heads Bayern Munich past Arsenal and into semi-finals
Bayern Munich's Joshua Kimmich powered in a 63rd-minute header to give them a 1-0 victory over a toothless Arsenal on Wednesday and send them through to the Champions League semi-finals for the first time in four years with a 3-2 aggregate win.
Nadal makes winning return in Barcelona
Rafael Nadal said it was a challenge to hold himself back on his return to the ATP Tour after three months on the sidelines but the fiercely-competitive Spaniard expects to continue with the controlled approach in Barcelona.
Latest With Hit
Meet Harnidh Kaur, one of the most youngest followed on social media
