If an admin of a group (not admin of the site), try to delete a own post from activity page of the group, it is succesfully deleted in ajax.
But if he try to delete a post related to another user, then he is redirected to a page like this:
http://www.example.com/activity/delete/699/?_wpnonce=d8a012dd00 that show a page 404 and the activity item is not deleted at all.
I am using my custom theme, (I already tested with a standard theme and it works), I tried to debug the code but I can’t find nothiing different from the 2015 theme.
Can you please let me know to understand why this happens?