Hiya,
This JWT is valid because the JWT is not expired. You can't revoke a JWT by logging out because they are stateless. Here's more information about how revoking JWTs: https://fusionauth.io/learn/expert-advice/tokens/revoking-jwts
This is one of the reasons why we recommend storing a JWT in a server side session, so that removing the session (on logout) removes the JWT. More here: https://fusionauth.io/learn/expert-advice/authentication/webapp/oauth-authorization-code-grant-sessions
Does that help?