Similar here actually. I usually try to vote by mail, but by the time I finally got registeration and residency handled after 2 online registrations and two visits to the elections office, early voting was over, so I had to go to the polls on election day

Write to the white house and ask them to investigate it as fraud. Because there was shenanigans pulled in red states for that.

Americans overseas had their ballots challenged in Pennsylvania and there is still a lawsuit over that.