My Ajax (v 15.1) HtmlEditorExtender prevents my update command to fire after modifying the html markup of first line of text. Why?

Hi All,

I have included an ajax HtmlEditorExtender into my edit template of my listview.

Something strange is happening: when I change the html of 1st line of a text inside the HtmlEditorExtender, this action prevents my update button to save the new data into my sql database.

Basically, if I write something like:

sddfasaa<p>dsfsdfsdfsd</p><p>dsfsdfsdfsd</p>

I can update my db but I cannot if I write something like:

<p>sddfasaa</p><p>dsfsdfsdfsd</p><p>dsfsdfsdfsd</p>

Did someone encounter this problem?

Thanks for letting me know