I've attempted to configure a few different ACS v2 subscriptions with no success getting refresh tokens to work. As a work-around we can just get a new authorization code/access token, but that's not ideal and shouldn't be necessary. I'm not entirely sure how to go about troubleshooting this as the ACS v2 is a large black box. I've read over the OAuth2 draft10 spec many times at this point and believe that the data that is going to the ACS is correct. All the other calls are working properly.. I'm able to get authorization codes and access tokens properly, but once the access token expires the request to refresh and get a new access token fails.
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What type of impact does this issue have?