Hello,
I’m the author of this plugin. I’m disappointed to announce that Instagram set this app to Sandbox mode, without notification – which has introduced bugs to this plugin.
Instagram did not inform me, but apparently they added a review process – after this plugin was created. Completing the review process is required to “go live” from Sandbox mode. I would have happily done this during development, however that process did not yet exist. I would have also done this before it was automatically set to Sandbox mode, had I known, but I was not notified of this new process or the switch that occurred. It was brought to my attention luckily when a user informed me that it wasn’t working.
As of June, 2016 all apps not reviewed (including this one) were turned to Sandbox mode (https://www.instagram.com/developer/sandbox/). This causes major bugs for this WordPress plugin.
Although my email is associated with my Instagram developer account, they did not send an email to inform me of this crucial info unfortunately.
I have submitted the app / plugin to Instagram for review, and will provide an update when it is approved and the plugin is usable again.
This is unfortunate as I understand there are probably many websites that will break that are relying on this plugin. Hang tight!
Regards,
Adam