Nintex templates download as I was investigating some issue with their search bar. In the header file, if you have multiple '<input' (like we would normally do for language switcher options) it negates the button being clickable at all.

Custom_Templates/customer_templates/Nintex University/courses.html.liquid

@@ -0,0 +1,37 @@
+{% include "header"
+  , color: "var(--nintex--color--deep-purple)"
+  , text_color: "white"
+  , text_en_US: ""
+  , text_es: ""
+  , text_fr: ""
+  , text_de: ""
+  , text_en_GB: ""
+  , text_nl: ""
+  , text_pt_BR: ""
+  , subtitle_en_US: ""
+  , subtitle_es: ""
+  , subtitle_fr: ""
+  , subtitle_de: ""
+  , subtitle_en_GB: ""
+  , subtitle_nl: ""
+  , subtitle_pt_BR: ""
+  , button_text_en_US: ""
+  , button_text_es: ""
+  , button_text_fr: ""
+  , button_text_de: ""
+  , button_text_en_GB: ""
+  , button_text_nl: ""
+  , button_text_pt_BR: ""
+  , button_link: "" %}
+{% include "sub_navigation" %}
+<main class="np-main np-courses np-subpage-container np-max-width">
+  <div class="np-resource-title">
+    {% t shared.course_vocabulary.plural
+      , key: current_school.course_vocabulary %}
+  </div>
+  <div class="np-resource-subtitle">{% t.headline  
+, key: current_school.course_vocabulary %}</div>
+  {% include "courses_index"
+    , class: "col-xs-12 col-sm-6 col-lg-4 np-stretch-content" %}
+</main>
+{% include "footer" %}