Hi,

I don't know if there is an easy fix for this but it's bugging me so
I'll report it to the list. I use a diary-style date as a schedule
item and just added a custom agenda function to remove future
scheduled todo's. This did not work well.

I think it's org-time-string-to-time that cannot handle sexp since it
returns the following in a backtrace:

error #("Bad timestamp `%%(org-float t 4 2)'

The backtrace is attached.

Simplified agenda to test the setup with:

  (setq org-agenda-custom-commands
        (quote (("R" "Tasks" tags-todo "-CANCELLED"
                 ((org-agenda-todo-ignore-scheduled 'future))))))

Org-mode text that should repoduce this problem given the above agenda:

 * TODO TestTodo
  SCHEDULED: <%%(org-float t 4 2)>
  Try with (org-agenda) -> input "R"

Kind regards
Gustav