In the Last Activities page not all items are being shown. ie. in https://meta.decidim.org/last_activities?locale=es right now its supposed to show 20, but only 13 are appearing.

@entantoencuanto has seen this while working on the redesign:

Taking a look to the code the paginated results are filtered to display only visible items:
From the controller there is a query which generates a paginated list of activities
From the view there is a call to a cell with the list of activities. The cell filters the passed list to show only activities visible by current user