Wednesday June 15, 2022


Some file previews are broken

Issue summary:
From 11:40 AM PDT to 3:56 PM PDT on June 15th, 2022, some users may have encountered a broken image icon when attempting to open and view certain files in Slack, such as PDF and Excel files.

We made a change to our PDF viewer that caused issues with the way we handle requests to open these files. We corrected the problematic logic we had inadvertently introduced, and deployed a fix. The fix restored normal file behaviour for all customers.

6:59 PM PST

We’ve released a fix, and these files can viewed once again. Thanks for your patience while we resolved this issue.

3:43 PM PST

Some users may be experiencing trouble with viewing files in Slack. We're working hard to resolve this issue as quickly as possible, and we'll share updates as soon as we can. We apologize for any inconvenience this may be causing.

2:19 PM PST

Services affected