Hello Odoo Community,

I encountered an issue after duplicating the "Project/Administrator" group. Following the duplication, I removed the record rule "Project: see all manager" from the new group. However, users assigned to the duplicated "Project/Administrator" group are unable to add a task stage in the Kanban view of their own projects.

Despite having the necessary access to the "project.task.type" model, the "Add a Column" (kanban_add_column) button is not visible on the project tasks dashboard for users in the duplicated group.

I have verified the Kanban view settings, cleared the browser cache, and checked for errors in the browser console, but the issue persists. Has anyone encountered a similar problem, or does anyone have suggestions on how to resolve this?

Your insights and assistance are highly appreciated.

Thank you!