Can not view MakeCode at Assigments

I has been follow instruction https://support.microsoft.com/en-us/topic/add-makecode-activities-to-assignments-in-microsoft-teams-57365fa8-b6f1-4f3d-bbd9-19ac6eeaacbb?ui=en-us&rs=en-us&ad=us but my assigments not view Add Resources of MakeCode how to enabled this?

Note: IT Admins need to enable MakeCode as a resource in the Teams and Skype for Business Admin Center. (this step also has been activated)