In notification feed i see a wrong link to active discussion:
https://grabcad.com/questions/any-advice-on-stolen-models
Attempt to visit this link will lead to error 404, because real link is following:
https://grabcad.com/groups/grabcad-community-user-group/questions/any-advice-on-stolen-models
As you can see, link in notification feed lacks of part in the middle: 'groups/group_name'.
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