I have a problem with the module MMM-ModuleScheduler on my new Reaspberrys PI 4

I crated my Mirror no a Pi3 with a working config.js.
Now on the PI4 i creaded the Mirror with a fresh raspian buster os and a fresh Mirror (V2.11) and all my favrorit modules. Everything works fine but …

When i use the Module MMM-ModuleScheduler and i disable the Screen in the power interface with the option “Turn monitor OFF” it works very well, but “Turn monitor ON” wont work. The Display stays blank.

The same problem in my config.js

    {
      module: 'MMM-ModuleScheduler',
      header: '',
      config: {
        notification_schedule: [
          {
            notification: 'REMOTE_ACTION',
            schedule: '00 5 * * *',
            payload: {
              action: 'MONITORON'
            }
          },
          {
            notification: 'REMOTE_ACTION',
            schedule: '30 22 * * *',
            payload: {
              action: 'MONITOROFF'
            }
          },
          {
            notification: 'REMOTE_ACTION',
            schedule: '0 4 * * SUN',
            payload: {
              action: 'RESTART'
            }
          }
        ]
      }
    },

On my Pi 3 it works very well. but on the Pi4 the Display switch to “Blank Screen” but doesn`t wake up.

Has anyone a hit oder fix for me ???

Best Regards,
Sandy2503