Just ‘bumping’ this. I use the Omnivore plugin, and it escapes a number of characters such as apostrophes and forward slashes. The files generated appear fine in an app like Typora which recognises the entities and displays them as the relevant characters. However, Obsidian fails to recognise them in Live Preview which leads to the page being a mess and broken external links. I don’t think it’s Omnivore’s problem, in that HTML character entities can be legitimately used in Markdown.