Where have there been technical issues so far during US midterm elections?

Meanwhile, a handful of polling locations throughout the United States have noted some technical problems with how ballots are cast during the midterm elections, causing office-holders to delay the closing time for polls so votes can be cast.

Key points

• Al Jazeera's Kristen Saloomey, reporting from Tarrytown, New York, remarked election office-holders were collecting ballots to be counted afterwards manually.
• In Broward County, Florida, voting was delayed for 20 minutes at the start of the day since a new safety feature malfunctioned.
• In North Carolina, the Board of Elections is considering extending voting by an hour in seven counties after widespread "technical issues" were documented.
• In Arizona's Maricopa County, a polling station at a school was temporarily closed after a power outage.
• There were a number of places where technical matters have delayed things as well.

In Westchester County, New York, north of New York City, authorities stated the machines meant to automatically read physical ballots were having trouble since the paper the ballots were printed on was too thick.

Al Jazeera's Kristen Saloomey, reporting from Tarrytown, New York, remarked election office-holders were collecting ballots to be counted afterwards manually. The machines are created by a business called Liberty Vote, a firm that employed to be called Dominion. It had a rocky history with US President Donald Trump, who had accused it, without evidence, of misrepresenting voting counts in past elections.

"Election officials are reassuring that they will be counted manually after everything is done, " Saloomey remarked, "and we don't know of this issue in other districts across New York or the United States, and there are dozens that do use this system."

County authorities stated on Tuesday that the ballots would be taken to the Board of Elections with a police escort and counted there with attorneys and representatives from all parties present, to prevent the spread of any "conspiracy" theories.

In a number of counties in Pennsylvania, voting has been extended by half an hour due to what office-holders noted were "machine setup issues".

In short, where have there been technical issues so far during US midterm elections? Is the central thread here, and readers can expect follow-up reporting as the picture becomes clearer.