This been a bug for awhile but when you click the “see all” to see all the items from only the group, it instead just brings you to the catalog page without any filters.
This is a pretty big issue due to half of the playerbase is mobile users
Expected behavior
I expect only my group’s ugc items to show up on the catalog
This is just an acknowledgment announcement!
We’ve filed a ticket into our internal database for this issue, and will come back as soon as we have updates!
Thanks for flagging!
I just looked at the post and its Crazy that this been going on a whole year, jesus…
IIRC, it has been for a very long time rather than just one year… But, still, a lot 
This is most likely gonna get fixed with the new “Communities” update announced at RDC.
From the images and screenshots they showed it looks like native app support for communities/group pages is finally coming. No more opening the website.