@ designorama,
We have disabled the description of category in JA Wall.
You can get it shown by editing the templatesja_wallhtmlcom_contentcategoryblog.php file:
<?php if ($this->params->get('show_description', 1) || $this->params->def('show_description_image', 1)) : ?>
<div class="category-desc">
<?php if ($this->params->get('show_description_image') && $this->category->getParams()->get('image')) : ?>
<img src="<?php echo $this->category->getParams()->get('image'); ?>"/>
<?php endif; ?>
<?php if ($this->params->get('show_description') && $this->category->description) : ?>
<?php echo JHtml::_('content.prepare', $this->category->description, '', 'com_content.category'); ?>
<?php endif; ?>
<div class="clr"></div>
</div>
<?php endif; ?>
<div id="masonry-container" class="clearfix">
.... more code here
You may need some css styles for it.
We will try to update this behavior if needed.