[TYPO3-templavoila] FCE: Selector Box: Value is not allowed

[Hauke]

Hi,

I have a FCE where I have a Selector Box with the following values:

    <TCEforms type="array">
     <config type="array">
      <type>select</type>
      <items type="array">
       <numIndex index="0" type="array">
        <numIndex index="0">Angabe in Textfeld / input in 
textfield</numIndex>
        <numIndex index="1"></numIndex>
       </numIndex>
       <numIndex index="1" type="array">
        <numIndex index="0"><![CDATA[Gebundenes Buch, 192 Seiten, 12,2 x 
18,8 cm]]></numIndex>
        <numIndex index="1"><![CDATA[Gebundenes Buch, 192 Seiten, 12,2 x 
18,8 cm]]></numIndex>
       </numIndex>
       <numIndex index="2" type="array">
        <numIndex index="0"><![CDATA[Hardcover, 192 pages, 12,2 x 18,8 
cm]]></numIndex>
        <numIndex index="1"><![CDATA[Hardcover, 192 pages, 12,2 x 18,8 
cm]]></numIndex>
       </numIndex>
      </items>
      <default>0</default>
     </config>
     <label>Format Dropdown</label>
    </TCEforms>

If I use another Element than default I always get the text "Aktueller Wert 
ist nicht erlaubt / value is not allowed here" after saving.

Do you know what the reason could be?

Sincerely,
Hauke