Resolved after 1 hour 2 minutes, on June 11, 2026.
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.
Update timeline
- investigating Jun 11, 2026, 10:13 PM UTC
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.
- monitoring Jun 11, 2026, 10:43 PM UTC
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.
- resolved Jun 11, 2026, 11:15 PM UTC
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.
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