Formatting problems with p: columns

I'm having trouble formatting a datatable with a fixed column and% with% variable columns.

POJO

@Entity
@Table(name="avaliaprojeto", schema="somore")
public class AvaliaProjeto implements Serializable, SampleEntity {

    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private int idAvaliaProjeto;

    @OneToOne
    @JoinColumn(name="idProjeto")
    private Projeto projeto;

    @OneToOne
    @JoinColumn(name="idCriterio")
    private Criterio criterio;

    @OneToOne
    @JoinColumn(name="idEscala")
    private Escala escala;

    double valorCriterio;
//gets sets equals e hash
}

There is a list of AssayProject objects, several linked to the same project. This object aims to relate Criterion-Scale. The goal is to present in a datatable in the following format:

However,whenIentermorethanoneproject,theformattingchangesto:

Notice that they are ProjectProject objects that deal with exactly the same criteria, varying only their impacts / values.

The view used to create these templates and for registers (via dialog) is:

<?xml version="1.0" encoding="ISO-8859-1"?>
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:p="http://primefaces.org/ui"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:sec="http://www.springframework.org/security/facelets/tags"
    template="/resources/templates/template_restrito_menuSomore_processo.xhtml">

    <ui:define name="section">
        <br />
        <center>
            <h:outputLabel value="Avaliação de Projeto" class="title" />
        </center>
        <br />

        <h:form id="form">
            <p:commandButton value="Novo" icon="ui-icon-document"
                actionListener="#{topsisBean.novoAvaliaProjeto}" process="@this"
                update="dataTable" oncomplete="PF('avaliaProjetoDialog').show()"
                class="botaoDataTable">
                <p:resetInput target="avaliaProjeto-dialog" />
            </p:commandButton>

            <p:commandButton icon="ui-icon-pencil" id="btnEditar" title="Editar"
                disabled="#{topsisBean.avaliaProjeto == null}"
                class="botaoDataTable" process="@this"
                update="dataTable :form btnEditar btnExcluir"
                oncomplete="PF('avaliaProjetoDialog').show()">
                <p:resetInput target="avaliaProjeto-dialog" />
            </p:commandButton>

            <p:commandButton icon="ui-icon-trash" id="btnExcluir" title="Excluir"
                disabled="#{topsisBean.avaliaProjeto == null}"
                class="botaoDataTable" action="#{topsisBean.excluirAvaliaProjetos}"
                process="@this" update="dataTable btnExcluir btnEditar" />

            <p:commandButton icon="ui-icon-triangle-1-w" id="btnAnterior"
                title="Etapa Anterior" disabled="#{topsisBean.pd == null}"
                class="botaoDataTable" action="criterio" process="@this"
                update="dataTable btnExcluir btnEditar" />

            <p:commandButton icon="ui-icon-calculator" id="btnProximo"
                title="Calcular TOPSIS" disabled="#{topsisBean.pd == null}"
                class="botaoDataTable" action="avaliaProjeto" process="@this"
                update="dataTable btnExcluir btnEditar" />

            <p:dataTable var="p" value="#{topsisBean.getProjetosPD(true)}"
                paginator="true" rows="10" class="dataTable" id="dataTable"
                emptyMessage="Nenhuma Avaliação de Projeto cadastrada"
                paginatorPosition="bottom" selection="#{topsisBean.projeto}"
                selectionMode="single" rowKey="#{p.idProjeto}">

                <p:ajax event="rowSelect" updtate=":form:btnExcluir" />
                <p:ajax event="rowUnselect" updtate=":form:btnExcluir" />

                <p:column headerText="Projeto">
                    <h:outputText value="#{p.nomeProjeto}" />
                </p:column>

                <p:columns value="#{topsisBean.avaliaProjetos}" var="ap" headerText="#{ap.criterio.nomeCriterio}">
                    <h:outputText value="#{topsisBean.verificarTipoCriterio(ap)}" />
                </p:columns>
            </p:dataTable>

            <p:dialog header="Avaliação de Projeto"
                widgetVar="avaliaProjetoDialog" modal="true" resizable="false"
                id="avaliaProjeto-dialog" closeOnEscape="true">

                <p:messages/>

                <p:panelGrid>
                    <p:row>
                        <p:column style="width:15% !important;">
                            <h:outputLabel for="pdMenu" value="Processo de Decisão: "
                                class="componentePF label bold" />
                        </p:column>

                        <p:column style="width:100% !important;">
                            <p:selectOneMenu id="pdMenu" converter="generic"
                                value="#{topsisBean.pd}" class="componentePF text bold"
                                required="true"
                                requiredMessage="É necessário escolher um processo de decisão">
                                <f:selectItem itemLabel="Escolha um Processo"
                                    noSelectionOption="true" />
                                <f:selectItems value="#{topsisBean.pds}" var="pd"
                                    itemLabel="#{pd.nomePD}" itemValue="#{pd}" converter="generic" />
                                <p:ajax listener="#{topsisBean.mudouPD}"
                                    update="projetoMenu dataTableDialog" />
                            </p:selectOneMenu>
                        </p:column>
                    </p:row>

                    <p:row>
                        <p:column>
                            <h:outputLabel for="projetoMenu" value="Projeto: "
                                class="componentePF label bold"
                                onclick="#{topsisBean.getProjetosPD()}" />
                        </p:column>

                        <p:column>
                            <p:selectOneMenu id="projetoMenu" converter="generic"
                                value="#{topsisBean.projeto}"
                                class="componentePF text">
                                <f:selectItem itemLabel="Escolha um Projeto" itemDisabled="true"
                                    noSelectionOption="true" />
                                <f:selectItems value="#{topsisBean.projetosPD}" var="p"
                                    itemLabel="#{p.nomeProjeto}" itemValue="#{p}"
                                    converter="generic" />
                            </p:selectOneMenu>
                        </p:column>
                    </p:row>

                    <p:row>
                        <p:column colspan="2">
                            <p:dataTable var="ap" value="#{topsisBean.avaliaProjetosPD}" style="width:100%; margin:0% !important;"
                                paginator="true" rows="10" class="dataTable" id="dataTableDialog"
                                emptyMessage="Nenhum Critério Cadastrado no PD #{topsisBean.pd.nomePD}" paginatorPosition="bottom">

                                <p:column headerText="Critério">
                                    <h:outputText value="#{ap.criterio.nomeCriterio}"/>
                                </p:column>

                                <p:column headerText="Valor Numérico (Se houver)" width="220">
                                    <p:spinner value="#{ap.valorCriterio}" min="0" prefix="U$D " class="componentePF text"/>
                                </p:column>

                                <p:column id="colEscala" headerText="Escala" width="300">
                                    <p:selectOneMenu converter="generic" value="#{ap.escala}" 
                                        class="componentePF text">
                                        <f:selectItem itemLabel="Escolha um Impacto de Escala" itemDisabled="true" noSelectionOption="true" />
                                        <f:selectItems value="#{topsisBean.escalas}" var="e"
                                            itemLabel="#{e.impactoEscala}" itemValue="#{e}" converter="generic" />
                                    </p:selectOneMenu>
                                </p:column>
                            </p:dataTable>
                        </p:column>
                    </p:row>

                    <p:row>
                        <p:column colspan="2">
                            <p:commandButton value="Cadastrar" icon="ui-icon-disk"
                                    action="#{topsisBean.cadastrarAvaliaProjetos}"
                                    id="cadastrarAvaliaProjeto" ajax="false"
                                    style="width:23% !important; float:right !important;"
                                    class="componentePF button" 
                                    rendered="#{topsisBean.pd != null}"/>
                        </p:column>
                    </p:row>                
                </p:panelGrid>
            </p:dialog>
        </h:form>
    </ui:define>
</ui:composition>

The assembly of the table is given in the following excerpt from the above view:

<p:dataTable var="p" value="#{topsisBean.getProjetosPD(true)}"
                paginator="true" rows="10" class="dataTable" id="dataTable"
                emptyMessage="Nenhuma Avaliação de Projeto cadastrada"
                paginatorPosition="bottom" selection="#{topsisBean.projeto}"
                selectionMode="single" rowKey="#{p.idProjeto}">

                <p:ajax event="rowSelect" updtate=":form:btnExcluir" />
                <p:ajax event="rowUnselect" updtate=":form:btnExcluir" />

                <p:column headerText="Projeto">
                    <h:outputText value="#{p.nomeProjeto}" />
                </p:column>

                <p:columns value="#{topsisBean.avaliaProjetos}" var="ap" headerText="#{ap.criterio.nomeCriterio}">
                    <h:outputText value="#{topsisBean.verificarTipoCriterio(ap)}" />
                </p:columns>
            </p:dataTable>

If you need anything else, please let me know.