On June 3rd, beginning at 9:54 AM EST until 1:37 PM EST Instagram Direct messages were unavailable due to a problem with the API at Instagram, which prevented messages from being retrieved. The issue was corrected and service was restored at 1:37 PM EST. By 5:45 PM EST, all blocked messages were processed by the API.
Services impacted:
The root cause was an issue with the API at Instagram.
Facebook corrected the problem with the API and all blocked messages were re-driven.