Primefaces selectOneRadio(RadioButton) update panelGrid within Dialog - ajax

Question

i m trying to update a panelgrid form selectOneRadio within a dialog.
Every time i chose on of the two options the whole panelGrid collapse and a NPE is thorw without any details.
My Sourcecode:
<h:form id="form_tmpVst">
<p:dialog id="dialog_tmpVst" header="Temporäre Verkaufsstelle" widgetVar="dialog_tmpVst" modal="true" resizable="false" showEffect="clip">
<p:selectOneRadio id="radio_placeOnMap" value="#{mapBean.placedByAddress}" layout="custom">
<f:selectItem itemLabel="Karte" itemValue="#{false}" />
<f:selectItem itemLabel="Adresse" itemValue="#{true}" />
<p:ajax update="panel_tmpVst" />
<!-- <p:ajax #process="#this" update="#this panelTempVst" /> -->
</p:selectOneRadio>
<p:panelGrid id="panel_tmpVst">
<p:row>
<p:column colspan="2">
<p:outputLabel value="Platzierung: " />
</p:column>
</p:row>
<p:row>
<p:column>
<p:radioButton id="radio_tmpVstPlaceByAddress" for="radio_placeOnMap" itemIndex="0" />
<p:outputLabel value="Karte" for="radio_tmpVstPlaceByAddress" />
</p:column>
</p:row>
<p:row>
<p:column>
<p:radioButton id="radio_tmpVstPlaceByMap" for="radio_placeOnMap" itemIndex="1" />
<p:outputLabel value="Adresse" for="radio_tmpVstPlaceByMap" />
</p:column>
<p:column>
<p:inputTextarea id="txtarea_address" rows="5" cols="30" counter="txtarea_counter" maxlength="200" counterTemplate="{0} Zeichen übrig."
autoResize="false" value="test data __öäüöäöüöäö" required="#{mapBean.placedByAddress}" disabled=" #{!mapBean.placedByAddress}"
style="resize: none;" />
<br />
<h:outputText id="txtarea_counter" style="font-size: .5em;" />
</p:column>
</p:row>
<p:row>
<p:column>
<p:outputLabel value="Name:" for="txt_tmpname" />
</p:column>
<p:column>
<p:inputText id="txt_tmpname" value="#{mapBean.tmpVstName}" required="true" />
</p:column>
</p:row>
<p:row>
<p:column>
<p:outputLabel value="BST:" for="txt_bsttmp" />
</p:column>
<p:column>
<p:inputText id="txt_bsttmp" value="#{mapBean.tmpDistrict}" required="true" />
</p:column>
</p:row>
<p:row>
<p:column>
<p:outputLabel value="VST:" for="txt_vsttmp" />
</p:column>
<p:column>
<p:inputText id="txt_vsttmp" value="#{mapBean.tmpVstNumber}" required="true" />
</p:column>
</p:row>
</p:panelGrid>
<br />
<p:commandButton value="Hinzufügen" id="btn_addTmpVst" action="#{mapBean.addTempVst()}" type="submit" ajax="true"
update=":dataTableForm:markerListDataTable, :mapForm:map, :growl" oncomplete="PF('dialog_tmpVst').hide();" />
</p:dialog>
</h:form>
Before:
After radio-button klick:
Many Thanks in advence

Answer 1

This is normal, basiclly you're updating the h:panelGrid which contains the p:radioButtons without a notice to the owner (p:selectOneRadio).
To solve this update the p:selectOneRadio alongside the h:panelGrid, that way the rendering would work as expected:
<p:ajax update="panel_tmpVst radio_placeOnMap" />