Why is <c:if test="#{MyBean.myFunction()}"> rendering multiple times in my xhtml file?

I have a large xhtml file, below the imports there is a component that should only render when a test from a Bean returns true.

<c:if test="#{MyBean.myFunction()}">
    <div id="myId" class="someClass">
        <h4>someText</h4>
    </div>
</c:if>

Somehow it is rendering 4 times, i have checked it through a logger.

When I place a simple

<h:outputText value="#{MyBean.myFunction()}"/>

at the same spot, it is rendering just once.