Pagers gone on admin pages

The issue

AT themes don't print pagers on all admin pages, e.g.:

• /admin/content
• /admin/people
• /admin/reports/dblog

In brief

• The site: a multisite (1+6), every site uses exactly the same constellation of themes with exactly the same settings:
  • AT Admin (placed in: /sites/all/themes/adaptivetheme/; no customisations performed) + AT-based sub-theme (copied from /sites/all/themes/adaptivetheme/at_subtheme/ into /sites/all/themes/my_theme).
• AT Core installed, not enabled.
• The default "starterkit" - AT Subtheme present, not enabled (never has been).
• Pagers gone only on the MASTER site!

In detail

I have no idea how it is possible that the pagers simply gone but only on the master page. When I switch back to the "Seven" theme everything is fine - I can see the pagers. I have tried to use my AT Subtheme as administrative themes - the result was the same - no pagers on admin pages.

This might be interesting - I have installed the Administration Views module - if a admnistration view is used, for example on admin/content, the pager is there as desired, but if I need to review the "Recent log messages" which haven't been overriden by Administration Views, I don't even know there is more than 1 page.

This is not a very big problem but it would be nice if anyone would find a solution or hint how to fix it. Meanwhile I have to use the old, good "Seven" theme on my master site.