page attribute templates are not showing except the default and the slider revo

[Sujoy Banerjee]

page attribute templates are not showing except this two , there use to be a lot of template options available within the dropdown options but all of sudden its showing only those 2 now
see screenshot for reference :

[Sujoy Banerjee]

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[Veena]

I don’t see such issue in your site . Pls check the attachment.

[Sujoy Banerjee]

yea, they started showing again .
any chance that those options within the template dropdown can turned off or something which i did accidentally ?

[Veena]

Not sure what exactly caused this. Using of some plugins may cause this kind of issues .

[Sujoy Banerjee]

so this same thing happened again and i had to do a deep search and found the actual cause of this :

Just in WordPress 4.9 there’s this bug: https://core.trac.wordpress.org/ticket/42573 causing the template files to only be rescanned once every hour.

solution : ( till they release wp 4.9.1 and fix the issue )

Add the below code in child theme’s function.php file

function wp_42573_fix_template_caching( WP_Screen $current_screen ) {
	// Only flush the file cache with each request to post list table, edit post screen, or theme editor.
	if ( ! in_array( $current_screen->base, array( 'post', 'edit', 'theme-editor' ), true ) ) {
		return;
	}
	$theme = wp_get_theme();
	if ( ! $theme ) {
		return;
	}
	$cache_hash = md5( $theme->get_theme_root() . '/' . $theme->get_stylesheet() );
	$label = sanitize_key( 'files_' . $cache_hash . '-' . $theme->get( 'Version' ) );
	$transient_key = substr( $label, 0, 29 ) . md5( $label );
	delete_transient( $transient_key );
}
add_action( 'current_screen', 'wp_42573_fix_template_caching' );

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