Derive Group State from Member Items is not working

  • Platform information:
    • Hardware: Synology DS716+
    • OS: Docker
    • openHAB version: 4.0.0.M1
  • Issue of the topic: Derive Group State from Member Items is not working
  • configuration
    • Items configuration:
Group:Contact:OR(OPEN,CLOSED)   Oeffnungen  "Öffnungen Fenster & Türen"  <window> (Zustandsgruppen) ["Window"]
Group:Contact:OR(OPEN,CLOSED)   OC_Diele     "Open-Close Diele"                  <window>        (Oeffnungen) ["Point"]
Contact                 Fenster_Diele_Nord_Zustand     "Zustand Fenster Diele Nord"   <window>        (OC_Diele, Fenster,  Fenster_Diele_Nord) ["Point"] {channel="deconz:openclosesensor:bridge:00158d000911f7bd010006:open"}
Contact Aussentuer_Diele_Zustand "Zustand Außentür Diele"                        <door> (OC_Diele,Aussentueren, Aussentuer_Diele) ["Point"] {channel="deconz:openclosesensor:bridge:00158d0007b7cf89010006:open"}
Contact Aussentuer_Testdiele_Zustand  "Zustand Außentür Testdiele" <door> (OC_Diele,Aussentueren, Aussentuer_Testdiele) ["Point"] {channel="deconz:openclosesensor:bridge:00158d000911f915010006:open"}

I don’t understand why the group state is not changing to OPEN. Is anything wrong in my items?

Seems ok to me.
Did you already restart openHAB?
Do all Items grouped by OC_Diele have a valid status (this is OPEN or CLOSED)?

@Udo_Hartmann Yes. I did restart twice and I only have this three items. They all have only the state OPEN or CLOSED. Thats what makes me wonder because it is not working. The Items are copy and paste from my filebased configuration in 4.0.0.M1

Has anyone here an idea? I still have the same problem and can’t build my automations as I want to?
Is it may be a bug in M1? Can someone test my items in his installation?

I did install the todays openhab 4.0.0 snapshop version and then it does work!