Current answer
Slack experienced a minor incident: Child windows displaying content at half height. The last provider record was marked Resolved; its current state cannot be verified.
The notice publication date does not establish the outage start.
Looking for an update now? Check the current status, or follow Slack for future changes.
Incident Timeline
Update
We've validated that the fix resolved the issue and child windows are now displaying content as expected.
You may need to reload Slack using Command + Shift + R (Mac) or Ctrl + Shift + R (Windows/Linux) in order for this fix to be reflected on your end. We're sorry for the disruption this caused to your day.
You may need to reload Slack using Command + Shift + R (Mac) or Ctrl + Shift + R (Windows/Linux) in order for this fix to be reflected on your end. We're sorry for the disruption this caused to your day.
Jun 11, 2026 at 11:15 PM UTC
Update
We’ve deployed a fix and are now performing validations. We'll provide an update in 30 minutes or sooner if additional information becomes available.
Jun 11, 2026 at 10:43 PM UTC
Update
We're aware of an issue affecting the Slack desktop app. Users may find that content in child windows, such as channels or documents opened in a separate window, displays at reduced height. We’ve identified the technical trigger and are deploying a fix.
We'll provide an update in 30 minutes or sooner if additional information becomes available.
We'll provide an update in 30 minutes or sooner if additional information becomes available.
Jun 11, 2026 at 10:13 PM UTC
Was your business affected by this Slack outage?
Follow Slack and route available status alerts to email or a team channel.