Voters in South Carolina said machines at some polling places “flipped” their vote, according to a report on Tuesday.

The voters began to complain after they said their candidate picks, including in the governor’s race, did not match those on their final ballot submission, CBS station WLTX reported.

One person told the station that she tried to correct her vote several times before a poll worker took her to another machine so she could cast her vote.

Richland County elections director Rokey Suleman said no votes were switched and blamed the malfunctions on a calibration issue with the voting machines.

He told the station that if the touchscreen calibration is off, it could make an unintended selection.

He cautioned voters to review their final selection page to ensure it reflects their correct picks.

Suleman said polling places in the county have also reported problems with flashcards, electrical cords and non-functioning outlets.

He said the voting machines are usually recalibrated several times on Election Day.

The complaints in South Carolina follow similar reports at the end of October about voting machine glitches in Texas.

Early voters casting straight party tickets in Houston said the machines changed their ballots to include a candidate from the other party.

Democrats and Republicans said their selections were affected.

Election officials rejected claims that the machines malfunctioned and chalked up the mistakes to “operator error.”

“It’s not a glitch, it’s a user-induced problem that comes from the type of system that we have,” Ft. Bend County election administrator John Oldham told ABC 13. “I think both sides could be equally hurt.”