IdentityServer4 Revoke Token

Question

Hi,

I am using Identity Server 4 and issuing token based on Resource Owner Password validator.

I need to provide a method to revoke the token so that token cannot be used immediately after that.

I used RevokeTokenAsync on the Revocation end point and it comes back with a success, however, the token still works.

Is there anything that I am missing?

thanks
Angelo