Problems displaying two CustomAttributes in uwl.

I have a view with two CustomAttributes: v_nombre and supl_nom.

And I have a ItemType for a task that uses both CustomAttributes.

Well, the uwl can not display the values of the two CustomAttributes simultaneously.

If I change the ItemType to represent only one of the two, the value is displayed correctly in the uwl,

I've tried with both attributes separately and in both cases it works well.

The problem occurs when I try to display both attributes at once. In this case only one value is displayed.

My view is defined as follows:

    <View name="DefaultView" selectionMode="SINGLESELECT" width="98%" supportedItemTypes="uwl.task" columnOrder="subject, isEscalated, creatorId, createdDate, priority, attachmentCount, dueDate, status, v_nombre, supl_nom" sortby="priority:descend, dueDate:ascend, createdDate:descend" tableDesign="STANDARD" visibleRowCount="10" headerVisible="no" queryRange="undefined" tableNavigationFooterVisible="yes" tableNavigationType="CUSTOMNAV" actionRef="" refresh="300" dueDateSevere="86400000" dueDateWarning="259200000" emphasizedItems="new" displayOnlyDefinedAttributes="yes" dynamicCreationAllowed="yes" actionPosition="bottom" referenceBundle="tasks">

      <DisplayAttributes>

        <DisplayAttribute name="priority" type="string" width="10" sortable="yes" format="default" referenceBundle="priority" hAlign="LEFT" vAlign="BASELINE" maxTextWidth="0" headerVisible="yes">

          <Menu>

            <MenuItem name="Low" actionRef="priorityLow" referenceBundle="menu_priority_low"/>

            <MenuItem name="Normal" actionRef="priorityNormal" referenceBundle="menu_priority_normal"/>

            <MenuItem name="High" actionRef="priorityHigh" referenceBundle="menu_priority_high"/>

            <MenuItem name="VeryHigh" actionRef="priorityVeryHigh" referenceBundle="menu_priority_v_high"/>

          </Menu>

        </DisplayAttribute>

        <DisplayAttribute name="v_nombre" type="string" width="" sortable="yes" format="medium">

          <Descriptions default="v_nombre">

            <ShortDescriptions>

              <Description Language="en" Description="Solicitante"/>

            </ShortDescriptions>

          </Descriptions>

        </DisplayAttribute>

        <DisplayAttribute name="supl_nom" type="string" width="" sortable="yes" format="medium">

          <Descriptions default="supl_nom">

            <ShortDescriptions>

              <Description Language="en" Description="Suplencia de"/>

            </ShortDescriptions>

          </Descriptions>

        </DisplayAttribute>

      </DisplayAttributes>

    ...

    </View>

And my ItemType with two custom attributes is defined as follows:

    <ItemType name="uwl.task.webflow.decision.TS90100436.UWL_Portal" connector="WebFlowConnector" defaultView="DefaultView" defaultAction="viewDetail" executionMode="default">

      <ItemTypeCriteria systemId="UWL_Portal" externalType="TS90100436" connector="WebFlowConnector"/>

      <CustomAttributes>

      <CustomAttributeSource id="WEBFLOW_CONTAINER" objectIdHolder="externalObjectId" objectType="DECISION" cacheValidity="final">

          <Attribute name="v_nombre" type="string" displayName="v_nombre"/>

        </CustomAttributeSource>

        <CustomAttributeSource id="WEBFLOW_CONTAINER" objectIdHolder="externalObjectId" objectType="DECISION" cacheValidity="final">

          <Attribute name="supl_nom" type="string" displayName="supl_nom"/>

        </CustomAttributeSource>

      </CustomAttributes>

       <Actions>

        ...

      </Actions>

    </ItemType>

Why can not display both values at once with this configuration?

It is a well known uwl error?

The version of my SAP Portal, is 7.01 SP7