Primefaces table with editable rows generateds duplicate gridcells - jsf

Question

Using PF 6.1, I have a Primefaces data table where I need to make certain cells editable. Most things are working fine, but when the page is refreshed, a duplicate empty element is inserted for each cell, and those elements disappear if I edit a row (even if I cancel editing). If I have normally 5 columns, I see 5 with class ui-editable-column and correct content, but when I refresh the page, I see additional 5 with class ui-panelgrid-cell that contain the data, and the original 5 with class ui-editable-column which are empty and make the table misaligned.
<p:panel>
<h:form>
<p:dataTable id="myTable" editable="true"
var="var"
value="#{ManagementBean.values}"
paginator="true"
paginatorPosition="top" rows="25"
paginatorTemplate="..."
tableStyle="table-layout: auto">
<p:ajax event="rowEdit" listener="#{ManagementBean.onRowEdit}" update="myTable"/>
<p:ajax event="rowEditCancel" listener="#{ManagementBean.onRowCancel}" update="myTable"/>
<!-- cells that dont need to be edited, have duplicate input and output fields-->
<p:column headerText="..." sortBy="...">
<p:cellEditor>
<f:facet name="output"><h:outputText value="#{var.name}"/></f:facet>
<f:facet name="input"><h:outputText value="#{var.name}"/></f:facet>
</p:cellEditor>
</p:column>
<!-- Example of cell that gets edited -->
<p:column headerText="...">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="..."/>
</f:facet>
<f:facet name="input">
<p:selectCheckboxMenu label="..." value="...">
<f:selectItems value="..." var="..."
itemLabel="..." itemValue="..."/>
</p:selectCheckboxMenu>
</f:facet>
</p:cellEditor>
</p:column>
</p:dataTable>
</h:form>
</p:panel>
</p:panelGrid>

Answer 1

Not sure if this is relevant to the issue OP is facing, but I also encountered duplicated cells and I fixed it by changing:
<p:panelGrid></p:panelGrid>
to
<h:panelGrid></h:panelGrid>
this solves the duplication issue on my end.
Sample of my view page looks like the following:
<h:panelGrid>
<p:column>
<p:row>
<!-- contents... -->
</p:row>
</p:column>
</h:panelGrid>
Might be helpful to future readers.