Sorry I was away from the computer. I have tried this now still with no luck. I did compare the contents of the %Plug.Upload{} without LiveView:
...
"image" => %Plug.Upload{
content_type: "image/png",
filename: "post-image.png",
path: "/var/folders/mt/9c2zqzy93tg5xfl7317j7m340000gn/T//plug-1619/multipart-1619366663-722432590674384-4"
}
...
This does work without live view. And changing the path to filename did not work. I will try the copy to a tmp file and then use that in the %Plug.Upload{}. I am still not sure why this does not work.
