Without seeing your code all anyone can do is guess.
The original code is missing each of the labels. If you look in the preview pane all you see is two radio buttons with no labels.
If the code has been updated, please be sure to include it so we can see.
When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.
You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.
See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (’).