[Orgmode] Problems with refiling

[Peter Westlake]

If I switch org-outline-path-complete-in-steps on, refiling breaks. How
it breaks depends on org-refile-use-outline-path:

  Yes: Top level headlines are available, nothing else.
  Not: Same.
  Start with file: only the files are listed. The headline doesn't move.

In the completion window, entries with sub-headlines appear in blue,
but I can't find a way to get to the sub-headlines. What am I missing?

org-refile-targets is
  ((org-agenda-files :maxlevel . 3)
   (nil :maxlevel . 3))

So I would expect to see headlines down to level 3.

Peter.