Unread badge stuck in Activity view

We're still investigating this issue and will share an update as soon as we have news. For now, affected users can try a temporary workaround by hard reloading their Slack app (Cmd/Ctrl + Shift + R), as this appears to be related to a previous bug with similar symptoms.

We are investigating an issue where the Activity badge may continue to show an unread count even after all messages have been read. We are actively engaged in resolving this and minimizing any impact. We will share an update as soon as we have more information. We sincerely apologize for any inconvenience this may be causing.