Na, it's because they ran out of physical ballots, the machine is said to be altering them proportionally to the amount of cast ballots, presumable there'd be periods of inaction while it works out how much to switch and when to make it look as organic as possible.

Problem is too many Trump votes to Biden votes, they didn't expect Biden to do as poorly as he clearly did, since they went the balls-to-the-wall-someone-is-going-to-notice-this-fuck fraud rout.