It may soon be time to say goodbye to Instagram as we know it.
On Thursday, the company started rolling out a major redesign to its interface that eliminated vertical scrolling. Users who had gotten the update quickly took to Twitter to express their displeasure about the change.
It turns out that Instagram didn’t intend to roll out the update as widely as it did. Head of Instagram Adam Mosseri tweeted out an apology, stating that “this was supposed to be a very small test but we went broader than we anticipated.”
“Due to a bug, some users saw a change to the way their feed appears today,” an Instagram spokesperson later told TechCrunch. “We quickly fixed the issue and feed is back to normal. We apologize for any confusion.”
TechCrunch was the first to report about the redesign back in October. At the time, the feature was being tested internally and only on the app’s Explore page.
But on Thursday, Instagram accidentally expanded the update to a wider set of users. Those who received the update reported that when they opened Instagram, they were only be able to swipe left or right through photos rather than scrolling up and down, which has been the norm on Instagram since the app’s inception.