[Bug]: Team sidebar icon doesn't show indicator for @mentions in muted channels
Before you file a bug report
- I have checked the issue tracker and have not found an issue that matches the one I'm filing.
- This issue is not a troubleshooting question. Troubleshooting questions go here: https://forum.mattermost.com/c/trouble-shoot/16.
- This issue is not a feature request. You can request features and make product suggestions here: https://mattermost.uservoice.com/forums/306457-general/.
- This issue reproduces on one of the currently supported server versions.
- I have read the contribution guidelines and the Mattermost Handbook Contribution Guidelines.
Mattermost Server Version
11.9.1
Desktop App Version:
6.2.3
Operating System
Windows 11
Steps to reproduce
- Join at least two teams, Team A and Team B.
- Mute a channel in Team B.
- While viewing Team A, have another user @mention you in the muted channel in Team B.
- Observe: the Team B icon shows no unread/mention indicator, even though the muted channel now has an unread mention.
- Switch to Team B: only now does the mention become visible.
Expected behavior
A @mention I receive in a muted channel should still produce a mention indicator on that channel's team icon, consistent with the fact that the channel itself is marked unread for mentions. Regular (non-mention) unread messages in muted channels should continue to be suppressed from the team icon, as currently implemented.
Observed behavior
No indicator appears on the team icon for a muted channel containing an unread @mention, when a different team is currently active. Switching to the team reveals the mention was there all along.
Log Output
Additional Information
Related discussions:
- #20939 (closed) — introduced the suppression of team-icon indicators for muted channels in general.
- #21229 — related inconsistency about muted-channel mentions being counted on the browser/desktop tab title.
This report is scoped specifically to the mention case, which the mute feature is documented to still surface, and which the current team-icon behavior does not.
When a channel is muted, the documentation states that the channel "doesn't appear bold to indicate unread messages unless you're @mentioned in that channel directly" (https://docs.mattermost.com/end-user-guide/preferences/manage-your-channel-specific-notifications). This works correctly at the channel level: a muted channel with an unread @mention for me is highlighted in the channel sidebar.
However, this signal does not propagate up to the team sidebar icon. If the mentioning channel belongs to a team I'm not currently viewing, the team icon shows no indicator at all, even though there's an actual unread @mention waiting for me. The only way to discover it is to manually switch into every team and check.
This appears to be a side effect of #20939 / mattermost-webapp#11058, which intentionally hid all unread/mention indicators on team icons for muted channels, to avoid the confusion of mentions not being discoverable via the channel switcher. That fix addressed the "regular unread message" case, but as a consequence it also suppressed the case that the mute feature explicitly promises to still surface: direct @mentions.
Source: mattermost/mattermost