We receive the subject JSON calling Graph API after successfully installing an app and converting the code to a permanent access token. All scopes have been verified. This is a development app (not published) installing on a development store. We have read other posts about this, with no resolution in the thread. We have emailed with support who have now gone dark on the issue.
Does anyone have any idea what this means? Please don't respond with the canned "here's what to try". We have tried it all at this point.
