Editing default role in Foodadvisor Demo gives an error

System Information
  • Strapi Version: 3.6.8
  • Demo application from: https://github.com/strapi/foodadvisor/
  • Operating System: Linux (AWS Linux)
  • Database: Sqlite?
  • Node Version: 14.18
  • NPM Version: 6.14.15
  • Yarn Version: 1.22.15

Hi, I am new to strapi and wanted to play around with the Demo application to be able to get to know the ADMIN interface better.
I downloaded/cloned the Foodadviser application and updated Strapi in there to be on the latest stable version 3.6.8 .

I also load in the default data in the application.

All works fine as admin user. But I wanted to play around with the RBAC future (in the community edition clearly yet.)

But saving for example when I edit the Editor (standard) role, it gives me an error:

"Permissions have to be defined all together for a subject field or not at all".

I tried several things, enabling all I could enable and then save, tried different combinations of CRUD actions, together with specific fields.
I read the “Cautions” section at: https://strapi.io/documentation/user-docs/latest/users-roles-permissions/configuring-administrator-roles.html#creating-a-new-role

But that also does not explain why I should get this error.

Again, I am using the foodadviser demo application “out of the box”.
Can anyone shine a light on this, that would be really great, because I am stuck here now…

Greatly appreciated,

PS: This is still a public accesible demo project, so SuperAdmin access to the Strapi ADMIN will not be a problem.