vim xptemplate shortcut not working

I have vim running on a remote server (connecting via the Terminal app on a Mac). It uses pathogen to manage plugins and has xptemplate installed.

Recently the 开发者_如何转开发 that triggers xptemplate when you've inserted a keyword has stopped working. I can't think of anything I've changed.

If I do:

verbose imap <C-\>

it seems to be there:

i  <C-\>       * <C-R>=XPTemplateStart(0,{'k':'<C-\++'})<CR>
    Last set from ~/.vim/bundle/xptemplate/plugin/xptemplate.conf.vim

Any suggestions how to further debug it?

Thanks.

have you tried following this "trouble shooting" to track the problem?: https://github.com/drmingdrmer/xptemplate/wiki/FAQ