I notice some issues too – possibly the same. A picture without a caption is displayed correctly, with the device resizing it to fit. A picture with a caption gets cropped – and so does the caption. Looks as if the device just displays it as 100% zoom – so it just crops from the right whatever does not fit – more in portrait orientation than in landscape. Particularly odd that even the captions are cropped under the images.
Without captions it looks perfect, but the sidebar is missing completely.
