I have historic wiki page that have links to allow users to open new issues on several different trackers.
I'm not sure since what version of Redmine this occurs, but I'm using @Redmine 3.1.1.stable@ and the links always sends me to new issue the default tracker ("Defect")

The links are in the following format: http://www.mysite.org/projects/[project]/issues/new?tracker_id=[trackerid]

This is my setup info:

Environment:
  Redmine version                3.1.1.stable
  Ruby version                   2.0.0-p645 (2015-04-13) [i386-mingw32]
  Rails version                  4.2.4
  Environment                    production
  Database adapter               Mysql2
SCM:
  Mercurial                      2.6.3
  Git                            1.9.5
  Filesystem                     
Redmine plugins:
  a_common_libs                  1.1.6
  recurring_tasks                2.0.0-pre
  redmine_category_watchers      0.0.2
  redmine_highlightjs            1.0.3
  redmine_image_clipboard_paste  1.0.0
  redmine_improved_searchbox     0.0.3
  redmine_issue_checklist        2.0.8
  redmine_issue_templates        0.1.0
  redmine_latex_mathjax_macro    0.3.0
  redmine_ldap_sync              2.0.6
  redmine_theme_changer          0.2.0
  redmine_versions_explorer      0.0.1
  redmine_wiki_extensions        0.7.0
  redmine_wiki_lists             0.0.6
  rmp_group_watchers             1.0.0
  scrum                          0.13.0
  sidebar_hide                   0.0.7
  star_item_link                 0.0.1
  usability                      2.0.0