So what is happening here is:
1) You are leaving a COMMENT on an item and mentioned someone
2) That comment causes an ACTION to be inserted into the Timeline
3) Since we do not show the full comment in the timeline, HTML is stripped from the comment
This is why the names are not hyperlinked. If you view the actual comment you will see that the names are hyperlinked IN the comment.
I've just looked at the default modules/jrComment/item_action.tpl file and it looks like we anticipated this and it appears to be setup correctly:
{$item.action_data.comment_text|jrCore_format_string:$item.profile_quota_id|jrCore_strip_html|truncate:160|jrCore_format_string:$item.profile_quota_id:"at_tags"|trim}
You can see the additional "at_tags" modifier call which formats those hyperlinks.
I just tested this scenario locally here and it is working - so if you have customized the jrComment/templates/item_action.tpl file then you'll want to fix that up.
--
Brian Johnson
Founder and Lead Developer - Jamroom
https://www.jamroom.net
updated by @brian: 09/29/16 01:08:22PM