link does not display in preview

I was working with a post which was working fine which included a link – now the link does not appear when previewing. Has something about my envionment changed that I don’t see ? I have tried to remove the > before the closing tag but neither way works. I have had to remove the tags for it to display here as well The save button is adding a closing tag but unsuccessfully.

i got this to work by adding the label before the closing syntax.