Voting machines that switch Republican votes to Democrats are being reported in Maryland. One voter reported

When I first selected my candidate on the electronic machine, it would not put the “x’ on the candidate I chose—a Republican—but it would put the “x” on the Democrat candidate above it.

This happened multiple times with multiple selections. Every time my choice flipped from Republican to Democrat. Sometimes it required four or five tries to get the “x” to stay on my real selection

And

Queen Anne County Sheriff Gary Hofmann said he encountered the problem, too, personally[.] … It occurred on two candidates on my machine. I am glad I checked. Many voters have reported this here as well[.]

And in Illinois, to Republican state representative candidate Jim Moynihan:

I tried to cast a vote for myself and instead it cast the vote for my opponent. You could imagine my surprise as the same thing happened with a number of races when I tried to vote for a Republican and the machine registered a vote for a Democrat.

And in North Carolina, Tennessee, Wisconsin, Colorado, and Utah. So far.

It’s never in the other direction, either. There’s never any accidental switch of a Democrat’s vote to the Republican candidate. This isn’t random error. It’ll be…instructive…to see who wins in the toss-up states and by what margin.

Review your votes, as you cast them and at the final review before you push the CAST or ENTER button that finalizes your choices, to be sure that it’s really your choices that are being registered.

But, there’s no voter fraud. Mm, mm.