The Author is not set. Checklist 6.1. (https://instantview.telegram.org/checklist#6-1-author-name) "Author name is required only if it is presented in the source article in a clear way (at the top of the page, at the very end of the text, etc.), especially if there's a name of an actual person."
The cover caption is missing. According to 6.5. Captions (https://instantview.telegram.org/checklist#6-5-captions)
"Any captions present in the source article must be preserved. This includes captions for the cover image and captions for all individual elements of slideshows."