Jsf f: ajax doesn't display right away

I have a tag like this:

<h:inputText size="30" immediate="true">
   <f:ajax event="change" listener="#{someMethod}" render="someDataTable"/>
</h:inputText>

I have a datatable like this:

<h:dataTable value="#{someList}" var="anyVar" id="someDataTable">some things
</h:dataTable>

when I change the text in inputText, this change does not happen immediately, rather, I need to click on the page for anything to get the desired result in the data table.

Does anyone know how to solve this problem?

early.