Can you provide screenshots... specifically of the edited text before you click save / preview from the text field? It works fine on my end so it could just be broken Comcode or Tempcode.

The first image is when I changed my text and image then I did the preview.

Only shows the image ( squished ) :) but no text. I feel maybe a text block showing the text to be posted would be helpful?

(Click to enlarge)

(Click to enlarge)

OK I see now the issue....

If you pass the mouse over the picture the text appears in the preview. Maybe this needs to be moved and activated to view without the mouse hover or give the users an idea that doing so will show the text field in preview. Just my thought.

Edited and changed to feature request. Some of the previews aren't the best, and this could be improved. But not in itself a bug.

Fixed typo