opencollegearts on "[Plugin: Publish To Apple News] Invalid Document error"

Hi Bradford, further to my earlier comment, the issue only seems to be affecting a small number of posts; new posts are publishing, as are some older posts that hadn't already been published. I can't work out what makes these two or three posts less acceptable than the others; they only contain text and images, whereas other articles that have been published also contain embedded videos. It's not as big an issue as I first thought, as it does only seem to be affecting a tiny proportion of our articles and new articles are publishing fine so far.

Below is a larger chunk of a problematic article.json file if it's useful in any way:

{"version":"1.1","identifier":"post-27018","language":"en","title":"Whitworth textiles exhibitions review","documentStyle":{"backgroundColor":"#FFFFFF"},"layout":{"columns":7,"width":1024,"margin":100,"gutter":20},"components":[{"role":"title","text":"Whitworth textiles exhibitions review","textStyle":"default-title"},{"role":"container","layout":"headerContainerLayout","style":{"fill":{"type":"image","URL":"bundle://unnamed-1-1-e1461580910756.jpg","fillMode":"cover"}},"behavior":{"type":"background_parallax"}},{"role":"byline","text":"by Cari Morton | May 2, 2016 | 9:00 AM","textStyle":"default-byline","layout":"byline-layout"},{"role":"body","text":"Textiles exhibitions are not that common in our national museums and galleries, especially textile design exhibitions, so itu2019s exciting that the [Whitworth Art Gallery](http://www.whitworth.manchester.ac.uk/) in Manchester is currently host three textiles and surface patte exhibitions concurrently.","format":"markdown","textStyle":"dropcapBodyStyle","layout":"body-layout"},{"role":"photo","URL":"bundle://unnamed-2-494x317.jpg","layout":"anchor-layout-right","anchor":{"targetComponentIdentifier":"component-572c4a7b21953","targetAnchorPosition":"center","rangeStart":0,"rangeLength":1},"animation":{"type":"fade_in","userControllable":true,"initialAlpha":0}},{"role":"body","text":"The Tibor Reich exhibition in particular is worth the visit. On until August 2016, the exhibition is a retrospective of Reich Ltdu2019s brightly coloured post-war industrial design. The second exhibition room is a riot of colour, with overlapping fabrics hung from the ceiling and so many pattes and colours vying for your attention. The range of the output is fascinating, not just in terms of the different styles employed but also in their application. The designs were applied to fabrics, both printed and woven, blankets, tufted and woven rugs, as well ceramics, including interior tiles, pots and tea sets.nnThe fabrics are heavily patte-based, encompassing a vast range of design styles, from detailed florals to bold geometrics, explored at varying scales across the fabrics. Some of the ceramics on display also employ patte repeats but many of them use a markedly different aesthetic, featuring his figurative illustrations of characterful people. The first exhibition room displays lots of these illustrative drawings alongside paper-based designs and architectural designs for his own house.","format":"markdown","textStyle":"default-body","layout":"body-layout","identifier":"component-572c4a7b21953"},{"role":"body","text":"","format":"markdown","textStyle":"default-body","layout":"body-layout","identifier":"component-572c4a7b24061"},{"role":"photo","URL":"bundle://unnamed-1-1-494x371.jpg","layout":"anchor-layout-right","anchor":{"targetComponentIdentifier":"component-572c4a7b24061","targetAnchorPosition":"center","rangeStart":0,"rangeLength":1},"animation":{"type":"fade_in","userControllable":true,"initialAlpha":0}},{"role":"photo","URL":"bundle://unnamed-2-1-494x354.jpg","layout":"anchor-layout-right","anchor":{"targetComponentIdentifier":"component-572c4a7b2676f","targetAnchorPosition":"center","rangeStart":0,"rangeLength":1},"animation":{"type":"fade_in","userControllable":true,"initialAlpha":0}}, (etc. etc. etc.

Excellent plugin by the way; it's been very useful to us in getting our content out!