I'm working on a playground book using the new Swift Playgrounds app for macOS, and the markup comments are not working. I'm following the documentation format, but it still doesn't work. Sometimes the comments just disappear, sometimes it deletes the code below, and sometimes just crashes the playground file and you can't open it anymore.
The markup comments are actually necessary to explain the content on pages. Do you know what is going on? And how do I fix it?
