Slack outage, 11 June 2026

Child windows displaying content at half height

Started
Resolved
11 Jun 2026, 23:15 UTC (after 1 h 2 min)
Impact
Minor

Last update from Slack

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.

11 Jun 2026, 23:15 UTC

Read the full incident on the official Slack status page

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