Hi Supernova, it has happened to all the posts, old and new, and I noticed it since yesterday, August 13.
Ok, I will repost my issue at the link you give. Thank you for that.
Bonjour! I have not been able to publish on my blog since the upgrade of Twenty Twelve to 4.8.The issue of no space between lines persists. Is there going to be an update that corrects this issue?