Pipes ignored

Hi in my Form i have a checkbox and a select field.
At both fields the pipe value is ignored.
Input:
<p>[checkbox sk_anmeldung_extrakurse “Ortho-Bionomy|0” “Qi Gong (für Musiker)|1” “Pilates|2” “Wartung und Pflege von Streichinstrumenten|3″]</p>

Output:
<span class=”wpcf7-form-control-wrap sk_anmeldung_extrakurse”>
<span class=”wpcf7-form-control wpcf7-checkbox”>
<span class=”wpcf7-list-item first”>
<input type=”checkbox” name=”sk_anmeldung_extrakurse[]” value=”Ortho-Bionomy”>
<span class=”wpcf7-list-item-label”>Ortho-Bionomy</span></span>
<span class=”wpcf7-list-item”>
<input type=”checkbox” name=”sk_anmeldung_extrakurse[]” value=”Qi Gong (für Musiker)”><span class=”wpcf7-list-item-label”>Qi Gong (für Musiker)</span></span>
<span class=”wpcf7-list-item”>
<input type=”checkbox” name=”sk_anmeldung_extrakurse[]” value=”Pilates”><span class=”wpcf7-list-item-label”>Pilates</span></span><span class=”wpcf7-list-item last”><input type=”checkbox” name=”sk_anmeldung_extrakurse[]” value=”Wartung und Pflege von Streichinstrumenten”>
<span class=”wpcf7-list-item-label”>Wartung und Pflege von Streichinstrumenten</span></span></span>

Ive also tried c&p yout example from your docs and also deactivate all other plugins and switching the theme, nothing worked.

I’m a bit clueless now, can you give me a hint how to debug that?

Greets from vienna
Gerhard

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