I have just noticed this problem today.
Normally, we post our listings, and when and if we need to revise them, we are unable to change anything in the "Describe the item you're selling" window within the ebay revise listing page. We are able to edit and add extra features like item specifics etc.
As of today, if we try to revise anything simple, (for example, addition of a marketing highlight) the auctiva template dissapears, leaving our unformatted listing.
Is anyone else experiencing this?