On March 23, 2021 starting around 5:15 p.m. PDT, a small number of customers experienced issues loading messages after converting group direct messages to private channels.
We determined that a code change to our database infrastructure inadvertently caused this issue. We reverted the code change around 1:43 a.m. PDT on March 24, 2021, which prevented further occurrences of the issue. We also ran remediation scripts so that the impacted channels could load messages once again.
This issue was resolved by or before 7:20 p.m. PDT on March 24, 2021 for most users (a reload might've been needed to see the messages). However, we discovered that some users were still impacted, so we worked to resolve the outstanding trouble. By March 26, 2021 around 3:00 p.m. PDT, the issue was resolved for all affected users.
Note: We've updated this summary to provide a more accurate timeline of events. In our message below, we said the issue was resolved on March 24, 2021, but we discovered this wasn't the case for all affected users. This summary has been updated to reflect our findings.
11:12 PM PST
We've resolved the issue, and messages should now load normally after converting group direct messages to private channels. If you're still affected, please reload Slack with Command/Control + Shift + R. Thank you for bearing with us.
8:30 PM PST
We've addressed the root cause, so converting group direct messages to private channels should work as expected moving forward.
We're working to resolve the trouble for those converted group direct messages already impacted, and we'll be back once this work is complete. We apologize for any disruption.
Note: We've updated this message to clarify we're still working on resolving the trouble for some users, and we'll be back once it's resolved. We've also slightly revised the title. Feel free to contact us at firstname.lastname@example.org if there's anything we can assist with.
2:36 AM PST
Some customers may be experiencing issues with loading messages after converting group direct messages to private channels. We’re investigating and will be back with an update shortly.
11:31 PM PST