E-commerce Framework: Cannot edit relations of Product class

I installed Pimcore 6.0.1 with the advanced demo package. I changed nothing from the default installation. When I open the Base data tab of any product it looks like this:

So the input or edit widgets of the relations are missing. What’s going on and how can I fix this?

Hello Pimmy, and welcome to the Community forums. Congratulations to your first install =)
I cannot notice any difference from your screenshot to the demo?
What are you missing?

Your custom layout for the object is not editable because you are in “Done” workflow state…