[Plugin: Simply Instagram] Wrong images in feed

For some reason, we seem to be picking up images from other users in our feed. When I check the plugin settings, the correct account name is shown. The issue is what’s being rendered through the widget.

The pictures don’t match what I expect and the username (I assume it’s the username?) shown at the bottom of each picture doesn’t match the expected username. Could it be returning photos from followed accounts?

http://wordpress.org/extend/plugins/simply-instagram/