Not able to see < character in front end

I am running into a problem when creating content with the < character… It is quite strange as the symbol is showed in the backend, when creating the content, but it disappear when you go to /node/%nid. Actually the whole text nodes, where the symbol is, disappears. I have disabled all the filters and the problem remains…

By the way, I have a Drupal 7 installation and cKeditor module installed, but switching to plain text editor doesn’t make a difference.

Does someone has a clue of why this is happening?

Thanks in advance.

EDIT

After some tests, I have discovered where the problem comes from. It has to do with the “word link” module. When word link is configured to run on a field, then it seems to remove all the text within the scope of the tags where the < appears. Now it seems it’s time to surf the word link code…

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