Approve admin consent request fails for native Android Exchange app

Hi all,

I'm currently in the process of trying to approve the native Android Exchange app as an Enterprise Application in our Azure Ad.

I have enabled the following :

I see the actual admin consent request :

When I try to approve it via :

I get the following error message :

Failed to approve the admin consent request for Email.

And (partial) :

"https://portal.azure.com/TokenAuthorize?error=access_denied&error_description=AADSTS650056%3a+Misconfigured+application.+This+could+be+due+to+one+of+the+following%3a+The+client+has+not+listed+any+permissions+for+%27AA" 

I am a global admin, am I missing something here?

Thank you in advance!

Regards,

Mervin