my favicon do not show in google mobile search

Hello @jerrywangtc

Thanks for the support topic, As we checked your site seems to be using AMP with Reader Mode and using Legacy Theme.

Also, Your site has a blank image in its root named favicon.ico it’s get loaded on AMP pages, URL for same https://jerrywangtc.blog/favicon.ico

Replacing this image with your favicon images with the same name favicon.ico should make it work as expected on AMP pages.

if you wish to add a different favicon on AMP pages. you can use the code snippet below, add it in your active theme’s functions.php or in a custom plugin.

/**
 * Add Favicon in the AMP legacy theme.
 */
function xyz_amp_setup_favicon() {
	?>
	<link rel="shortcut icon" href="https://www.your.com/image/path/imagesname.png" />
	<?php
}

add_action( 'amp_post_template_head', 'xyz_amp_setup_favicon' );

Replace https://www.your.com/image/path/imagesname.png with your image URL.