A machine used in an Oregon county to sort and examine ballots reportedly jammed recently, causing a slowdown in ballot processing.

The problem has happened before, according to Clackamas County officials, and comes as many ballots arrive ahead of next week’s presidential election.

“The fact of the matter is that we are experiencing backups that are making it difficult to process a large volume of ballots at any given time,” said County Clerk Catherine McMullen. according to local media.

“We are taking proactive steps to address this issue and also working on the process to continue processing ballots even without the mail-in ballot sorter actively working,” he continued.

McMullen said the goal is to count the majority of ballots by Nov. 8. As of Thursday, about 83,000 ballots have been processed, but more than 50,000 remain.

“We still know we will be done with most of the ballots by the end of the week after Election Day, just through a different process,” he said.