In your eq2ui_mainhud.xml you should have the following code. If you dont add it directly under the eq2ui_mainhud_knowledge.xml include.
Code:
<include>eq2ui_mainhud_knowledgesort.xml</include>
You may be missing other needed includes as well. So take a look at this
compare (left side is live default and the right side is beta default). Then add any includes you are missing.