The second day of the America's Cup World Series could be one team short, with Ineos Team UK working through the night to fix issues with its foil cant system.
The British team was forced out of its second race of day one after repeated issues with the system.
The system was designed by Team New Zealand and controls the foil arms on the AC75S.
Ineos skipper Sir Ben Ainslie said the issue "is certainly not our fault, this is supplied equipment."
"You can't go through the amount of time and energy that goes into those campaigns and you lose two races," he said.
"It's not very nice in this event but it will be a lot worse if it happens to someone in the challenger series or the Cup."
Team Ineos UK and Team New Zealand are scheduled to face each other on the water in two races today.
Coverage of the series will be shown at 2pm on TVNZ 1.