Tamara

ok – so it looks like I figured it out . . . I looked at the codex for help on this one (one of the links I posted before), and this is what I came up with:

// START - POST THUMBNAILS / FEATURED IMAGES SECTION

	/** Enable support for Post Thumbnails **/

	// Make sure featured images are enabled
	add_theme_support( 'post-thumbnails' );
	set_post_thumbnail_size( 150, 150, true ); // W x H, hard crop

	// Add featured image sizes
	add_image_size( 'featured-250', 250, 250, true ); // 250W x 250H, hard crop

	// Add other useful image sizes
	add_image_size( '570-lg-full-width', 570 );  // 570W x unlimitedH
	add_image_size( '380-sq', 380, 380, true );  // 250W x 250H, hard crop

	// Make your custom image sizes selectable from your WP admin
	// Register the image sizes for use in the media modal WP admin area
	add_filter( 'image_size_names_choose', 'my_custom_sizes' );

	function my_custom_sizes( $sizes ) {
	    return array_merge( $sizes, array(
	        'featured-250' => __( '250 Featured Sq' ),
	        '380-sq' => __( '380 Sq' ),
	        '570-lg-full-width' => __( '570 Full Width' ),
	    ) );
	}

// END Post Thumbnails Featured Images section

In the section on “Make your custom image sizes selectable from your WP admin” — what I found was that in my 1st version, I had some conflicting variables:

add_filter( 'image_size_names_choose', 'creativeandcurly_custom_sizes' );
	function wpshout_custom_sizes( $sizes ) {

If you notice, it says “creativeandcurly_custom_sizes” first and then on the next line it says “wpshout_custom_sizes” … that probably caused one problem. So when I copied my code this time, I copied it from the codex and used “my_custom_sizes” … the code also seems to be a tad bit different. In any case, no more stalling image library, and I have all of the image sizes available when I want to place an image into a post! ??

Thanks both of you for your initial help — I am really most appreciative!!!

ok so I took howtomakeWP‘s advice and removed all of my code pertaining to “Thumbnails” and “Featured Images” . . .

And of course, then I couldn’t do anything with the thumbnail / featured image. So I added back in the following code:

// START - POST THUMBNAILS / FEATURED IMAGES SECTION

	/*
	 * Enable support for Post Thumbnails
	 */

	// Make sure featured images are enabled
	add_theme_support( 'post-thumbnails' );
	set_post_thumbnail_size( 150, 150, true ); // W x H, hard crop

// END Post Thumbnails Featured Images section

And – voila! I was able to add back in my featured images / thumbnails, without the media library stalling. (So clearly my code was bad!)

But — now what from my original code block was wrong / what did I do wrong? What can I add back to get the following?

A featured image 250×250 hard crop called featured-250
An image that is 570px wide (I don’t care how high), hard crop, called 570-lg-full-width

The rest we can just ignore.

Thanks again!!

– Tamara