The issue concerns an unclickable “Read More” button in the excerpt of a Discourse topic when a large image or header is placed at the beginning. lhkjacky explains that Discourse generates a lightbox <a> tag for images and an anchor <a> tag for headers, which interfere with the excerpt link. david could not reproduce the issue locally and requested the raw markdown and relevant site settings. lhkjacky provided a test site, screenshots, and confirmed that the topic-excerpt-more span lacks an <a> tag, making the button non-clickable. codinghorror questions whether this is due to non-standard use of excerpts, possibly in pinned topics.
I tried to reproduce this locally, but I can’t. If I include a lightboxed image at the beginning of the post, it simply skips the lightbox/link, and shows the text below: