I'm using 3.2.1.GA. This is my code

<h:panelGroup rendered="#{empty medicationModel.workingMedication.addOrDecline}">
 <ifx:freePanel theme="subpanel3" width="593" height="10">
 <h:panelGrid style="margin: 0 auto;">
 <h:panelGrid style="margin: 0 auto;">
 <h:outputText style="font-weight: bold; font-size: 14px;"
 value="Would you like to add or decline a medication?" />
 </h:panelGrid>
 <ifx:spacer height="5" />
 <ifx:freePanel width="460" height="10" theme="subpanel5">
 <h:panelGrid style="margin: 0 auto;">
 <rich:spacer height="5" />
 <h:selectOneRadio value="#{medicationModel.workingMedication.addOrDecline}" layout="lineDirection">
 <a4j:support event="onclick" reRender="medicationAddDeclineButtonBox123" oncomplete="alert('hi');"/>
 <f:selectItem itemValue="true" itemLabel="Add Medication" />
 <f:selectItem itemValue="false" itemLabel="Decline Medication" />
 </h:selectOneRadio>
 <rich:spacer height="5" />
 </h:panelGrid>
 </ifx:freePanel>
 <ifx:spacer height="10" />
 <h:panelGroup layout="block" style="border: none;" id="medicationAddDeclineButtonBox">
 <ifx:spacer width="155" float="left" />
 <a4j:commandLink action="#{medicationModel.cancelMedication}" immediate="true" styleClass="button"
 reRender="D_Form:directionList, D_Form:selectedDirectionContent" onmouseup="this.blur();">
 <h:outputText value="Cancel" style="border: none;" />
 </a4j:commandLink>
 <ifx:spacer width="5" float="left" />
 <a4j:commandLink action="#{medicationModel.addOrDeclineMedication}"
 styleClass="button#{medicationModel.readyToGoNext ? '' : 'Disabled'}"
 reRender="directionList, selectedDirectionContent" onmouseup="this.blur();">
 <h:outputText value="Next" style="border: none;" />
 </a4j:commandLink>
 <ifx:clear />
 </h:panelGroup>
 </h:panelGrid>
 </ifx:freePanel>
</h:panelGroup>

All the ifx tags are rendered to <h:panelGroup layout="block" style="..." styleClass="...". That block of code is inside an a4j:form.
I have some other places where the reRender in a4j:support works correctly, but in this case (a4j:support for a h:selectOneRadio) it is ignored (you can see that I put a non-existing id in the reRender attribute and no error messages were printed out). If I use action attribute for that a4j:support, I can put a breakpoint in that method (i.e. it seems to work normally).
Did I miss anything here?