Users reported bugs, such as images not loading on Instagram and problems with Twitter direct messages, including the app showing notifications for unread DMs that weren't there when users checked their inbox.
UPDATE: July 3, 2019, 11:24 a.m. PDT Facebook has confirmed the outages to Mashable, and provided the following statement.
A Facebook spokesperson told CNET that the company "triggered an issue" during routine maintenance, which made it hard for some people to send or upload photos and videos.
Instagram's technical issues come a day after an outage at Cloudflare, a content-delivery and security services provider, caused multiple websites and services to be inaccessible Tuesday, including OKCupid, Peloton, Feedly, Discord and (ironically) DownDetector.
Facebook was up, but the world's largest social network was failing to load images.
The text was introduced by Facebook in 2016 to help blind users navigate the service, but is normally only accessible using screen reader software.
Many Twitter users also used this opportunity to quip about their social media platform working just fine amid this breakdown.
The issues were first reported about 10.45pm on Wednesday AEDT and were continuing to affect all three major platforms eight hours later. Hopefully there was a gardening tool in the photo - we've reached out to Abril but did not immediately hear back. This situation also affects the East Coast of the United States and part of Europe.
"We're aware that some people are having trouble uploading or sending images and videos on Instagram", the tweet said.