Significant problems with election center printers were observed during the 2022 midterm elections, prompting an inquiry by officials in Arizona’s largest county.

Bill Gates, the chairman of the Maricopa County Board of Supervisors, and Clint Hickman, the vice chairman, announced the probe on Twitter on Friday.

“This Board of Supervisors has always been committed to continuous improvement. When things don’t work, we find out why,” the statement said.

Former Arizona Supreme Court Chief Justice Ruth McGregor will conduct the investigation, according to the two chairmen.

“Justice McGregor will hire a team of independent experts to find out why the printers that read ballots well in the August Primary had trouble reading some ballots while using the same settings in the November General,” the statement said. “Our voters deserve nothing less. Maricopa County appreciates Justice McGregor’s willingness to serve in this role. We look forward to her findings.”

NEW: Former AZ Supreme Court Chief Justice Ruth McGregor will lead independent investigation into Election Day printer issues. We look forward to her findings. Statement ⬇️ pic.twitter.com/mOhkWideou

— Maricopa County (@maricopacounty) January 6, 2023

Despite the fact that the printing troubles apparently created hassles throughout Election Day, no voters were reportedly prevented from casting ballots during the dispute.