What is the problem?
Not sure if this is a problem but the last few times I used etcher to flash OctoPi to an SD card it's been finishing but giving an error saying "1 Failed Device" with some other info about checsums not matching. This is with multiple SD cards.
I'm still able to configure Octoprint on the RasPi and use it just fine. Just wanted to bring this to your attention.
I do not get this error with Rufus!