In 2005, Caucaunibuca returned to Fiji from France in late May to prepare for games against New Zealand Māori and the All Blacks and in time for Fiji's World Cup qualifiers, but failed to appear in any of the June or July matches. He missed Fiji's first World Cup qualifying match against Tonga in Suva but was recalled for their subsequent match against Samoa. After assuring Fiji coach Wayne Pivac he would play, Caucaunibuca missed a flight to Samoa saying he had been forced to remain in Fiji with his wife who had an infected tooth. The Fiji Rugby Union banned him for one year, ruling him out of the 2005 autumn tour of Europe and the 2006 South Pacific Tri-Nations series.