Sorry, brain cramp. I have no idea what the story in Michigan is.
In Michigan, there was a strongly Republican county where almost all Republican candidates lost 300 votes, and IIRC, about 5600 Trump votes went to Biden, and many other votes disappeared. This was discovered in the few days after the election when one candidate got fewer votes than he had voters in his household. The locals explained this on a failure to do an update.
An audit was performed, but by a relatively unknown group, which purports to have found, among other things, that all the logs from the day and a half after the election were erased from the voting server. They unfortunately also make some claims that are rather more agitating than they are illuminating, which some have latched onto to discredit everything.
https://letsfixstuff.org/2021/04/antrim-county-the-thread-that-unravels-2020-election-theft/
In short, the audit needs to be verified or disproven, and a whole lot of stuff needs to be explained - and over half a year after the elections, not much has been.