[TYPO3-ttnews] strange category behavior

[John Kavanagh]

Hello,

I am wrapping the images of my tt_news articles with the following
typoscript:

 image.stdWrap.wrap = <div class="cat-id-{register:newsCategoryUid}">|</div>
 image.stdWrap.insertData=1

It is working fine on every other post except the 1st one!! where i just get
class="cat-id-"...

I have  also wrapped the title, subheader & text similarly and the are all
working on all the posts including first post!!

Can anyone shine some light on this strange behavior??

Thanks,

John