I'm a bit late with this, but here is a commercial break
by ITV News during the 6:30 bulletin on 26/07/16.
It seems that the sustaining feed is just a static ITV logo (which wasn't placed as normal with the 'i' in a specific place), which then jumped to an animated logo and the next advert.
It was possibly only seen in ITV Westcountry/West Country/South West
(or whatever we're called these days...)