block's position differs based on language

Hi

I don't know if this is a bug or I have to configure something.
I'm using context 7.36. The site is configured to show contents in two languages - English and Italian. My home page has content in these zones:

• menu
• header
• header-bottom

When I browse the site in italian, the home page is rendered fine, but when I browse it in english the header-bottom zone is rendered into the header zone.

Italian

<header id="header" role="banner" class="clearfix">
	<div class="section-1 clearfix"></div>
	<div class="section-2 clearfix">
		<div class="region region-menu"></div>
	</div>
	<div class="section-3 clearfix">
		<div class="region region-header"></div>
	</div>
	<div class="section-4 clearfix">
		<div class="region region-header-bottom"></div>
	</div>
</header>

English

<header id="header" role="banner" class="clearfix">
	<div class="section-1 clearfix"></div>
	<div class="section-2 clearfix">
		<div class="region region-menu"></div>
	</div>
	<div class="section-3 clearfix">
		<div class="region region-header"></div>
		<div class="section-4 clearfix">
			<div class="region region-header-bottom"></div>
		</div>
	</div>
</header>

Is this a context misbehavior?
Can anyone help?

thanks a lot
gmario