This is at least the third outage this month.
The outage was caused by a "loss of power within a single data center within a single Availability Zone (USE1-AZ4) in the US-EAST-1 Region," according to AWS.
Slack apologized "for the continued trouble" at 8:58 a.m. ET and stated by 9:35 a.m. that it was "seeing improvements with most services that were affected earlier while the issues with file uploads are ongoing."
At approximately 8:18 a.m. ET, Epic Games Store informed customers that "service services outages are currently impacting the Epic Games Store, affecting logins, library, purchases, and so on."
"We are monitoring the situation and will notify you once the issue has been resolved," the "Fortnite" provider said.
Asana, a workplace software maker, also reported a "major outage" early Wednesday morning, but said just before 9 a.m. that all issues had "been resolved, and all customers should be able to access Asana again."
AWS, a leading provider of cloud infrastructure technology for all sizes of businesses, experienced a major outage on December 7 and another on December 15.