Radio field not displaying checked

[michelle-may]

Issue description:

I need a little help troubleshooting. I'm having an issue with two of my fields I'm using for layout switching. The field never shows the default as checked, even though it loads the correct default. If I choose a different option, it will show the radio button as checked, but if I go to a different screen in the customizer, and then back to my layout screen, all the radio buttons show as unchecked again. The related layout function still works and still displays the correct layout.

This does not happen with radio-buttonset, which shows the checked option on default and on change.

Version used:

Develop

Using theme_mods or options?

Theme mods

Code to reproduce the issue (config + field(s))

$fields[] = array(
	'settings' => 'posts_layout',
	'type'     => 'radio',
	'label'    => __( 'Select layout', 'brio-maia' ),
	'section'  => 'home_layout',
	'default'  => 1,
	'priority' => 10,
	'choices' => array(
		1 => __('1 Column (Post with Excerpt)', 'brio-maia'),
		2 => __('List Style: 1 Column', 'brio-maia'),
		3 => __('Masonry Grid: 2 Column', 'brio-maia'),
		4 => __('Masonry Grid: 2 Column, First Post 1 Col', 'brio-maia'),
        5 => __('Masonry Grid: 3 Column', 'brio-maia'),
        6 => __('Standard Grid: 2 Column', 'brio-maia'),		
        7 => __('Standard Grid: 3 Column', 'brio-maia'),		
        8 => __('Standard Grid: 4 Column', 'brio-maia'),		
        9 => __('1 Column Standard, Full Content', 'brio-maia'),		
	),
);

This is one of my layout switching fields. I have also tried naming the options instead of using numbers.