The whole incident is really quite odd, and I think you'd only know the particular circumstances if you're Sally or in the gallery. At some point someone, presumably in her ear, "makes her laugh" at something to do with the previous story. And then as far as I can see it goes like this:
- Some VT
footage is shown to do with a story about beached whales. Then, unexpectedly, the sound of an interviewee in what had presumably previously been a longer report starts playing out.
- A caption appears on screen over Sally, presumably the name of the person whose voice is still intermittently playing out over her.
- Sally then reads out something from the autocue suggested Art School work "has ... been ... completed".
This is where we hit meltdown, as the gallery presumably correct something that is incorrect on the autocue or which has been read out wrongly. This is somewhat worse than a technical malfunction or just the autocue breaking completely, because it's factually incorrect. At which point you can't just dismiss things and plough ahead, you need to correct the error. You've already read it out, so you can't just skip past it. We have the drawn out process of getting the facts right, at which point panic presumably sets in and the autocue goes to the wrong place.
Like I say, without knowing who's at fault (or what) I can't say for certain the best course of action. In this instance, I'd say it was understandable to bring things to a halt until some clarity could be established. By the sound of things everything was considerably out of kilter. If this was happening every single week it's not great, as a one (or perhaps two at this point) off it's not a disaster.
Having said all that, this is BBC Scotland which is looking to position itself as a broadcaster of a national and international news programme in the very near future. If it starts doing that on a new unproven show it'll be dead before anyone gives it a chance.