Custom window: Document Action button missing for non‑admin role

[Vhalentino Gamgenora]

created a custom window (table has DocStatus/DocAction). With an admin/key role the Document Action button shows and works. With a non‑admin role (that has R/W window access), the Document Action button does not appear.  

Steps to reproduce

1. Create DocType ⟨name⟩ (DocBaseType ⟨X⟩, Workflow ⟨if any⟩).

2. Create Window ⟨name⟩ bound to table ⟨table⟩.

3. Login with admin/key role → Document Action button is visible.

4. Login with role ⟨name⟩ (has R/W to the window) → button is missing.

Expected
Document Action button should be visible and list valid actions for the role.

What I have checked

• Role → Window Access: role ⟨name⟩ has Read/Write to the window.

• Role → Document Action Access: explicit entries created for DocType ⟨name⟩ (actions: ⟨Complete/Prepare/…⟩).

• Toolbar Button Access/Restrict: no rule blocking Document Action for this window/role.

• Role → Workflow Access added when using a custom workflow.

• Re-login & Cache Reset performed.

• Record status under test: DocStatus = ⟨Drafted/In Progress/etc.⟩.
  
  

this is when i use admin role

this is when i use 

i don't set any sql on display logic so the button is visible on every condition.

Any additional permission that controls the Document Action button visibility if i add window access for specific role?