title: Cognito - Refresh token has been revoked
body: <p>I'm using aws cognito user pool to authenticate users signing into our app. When we are testing, we are using the same credentials to sign in. I have set the refresh token expiry time as 10 years, while access and id tokens expiry time is set to 1 hour. But after sometime one or other person in the team getting <strong>refresh token has been revoked and at times refresh token is expired</strong>. Is this due to the same credentials being shared or for some other reason ?</p>
  <p>Somebody please help me out to get a clarity on this.</p>