Dashboard Server Dashboard server "play” command not working

Hello,
I can’t start a .urp program via the dashboard server on an UR20.
The dashboard server returns “Failed to execute: play"

  • robot is in remote mode
  • all other dashboard server commands e.g. ‘stop’ do work.
  • .urp program is loaded. I also reloaded it via the ‘load <program.urp>’ command.
  • i have a hardware start button. That works.

Is there something I missed? How can I make it work?