error] GenServer #PID<0.1529.0> terminating
** (stop) exited in: GenServer.call(#PID<0.1539.0>, :consume_done, :infinity)
** (EXIT) no process: the process is not alive or there's no process currently associated with the given name, possibly because its application isn't started
This error is occuring at consume_uploaded_entries function
I think I found the issue. Are you saving the uploaded files into priv/static/? If so, LiveView live reload will (by default and in dev mode) try to reload the page when something changes in this directory. Try changing the file destination or disabling live reload, it worked for me.