Robot is unresponsive, Published in default robot(uipath Assistant) version using 2020 beat

Hi community
I am trying a very simple workflow, just displaying a message box with some text in it.
I wanted to run it with a [robot] but not connected to [Orchestrator].
I published workflow on the default [robot], and closed uipath, with uipath assistant I have run it but no message box is popped but it shows as execution is done.
Help ME OUT Desperate of solution