User:Real struggle

Just installed the extension to try it out on an existing wiki.

My wiki has many links like this:

LinkText

When I click edit on a page with such a link it does not render them as links, it renders them as a textual representation, which in source looks like this: &amp;#x5B;&amp;#x5B;../SomePage|LinkText&amp;#x5D;&amp;#x5D;

Even worse, when saving the page I find that it did in fact replace all the links with this text version.

WYSIWYG_EDITOR_VERSION: 1.5.6_0 [B551+18.04.2016]

CKEDITOR_VERSION: CKEditor 4.5.4 (revision d4677a3)

Not using WikiEditor

Not using SemanticMediaWiki

Not using SemanticForms