Does Microsoft admin consent to use the azure active directory takes time to distribute?

Question

We are trying to call school data from Azure Active Directory using the Microsoft Graph API. For our areas, the administrator would consent to our application.

Then we update access tokenfor the user who shows the correct scope, but when trying to make an API call, as soon as the administrator provides the required consent, this will lead to an error with the error code Authorization_RequestDenied. After a couple of minutes, this works fine.

Is this normal or am I doing something wrong