bling007

/*
* Filter wp_query of YARPP Plugin
*/
function yarpp_custom_wp_query($query) {
	if(isset($query->yarpp_cache_type)){
		$query->set('post_type', 'product');
		$meta_query = [
			'relation' => 'AND',
			[
				'key' => '_stock_status',
				'value' => 'instock',
				'compare' => '=',
			]
		];
		$query->set('meta_query', $meta_query);	
	}
	
	return $query;
}

function yarpp_custom_wp_query_product_page(){
	if(is_product()){
		add_filter('pre_get_posts', 'yarpp_custom_wp_query', 100);
	}
}
add_filter('wp_head', 'yarpp_custom_wp_query_product_page');

The above has been tested and works fine. It is open for more modifications.
I hope it helps many Yarpp users out there. It would be my way of donating a little bit for this awesome and must-have plugin.

Hi, this issue appears when the user’s sessions are getting mixed. Check if your plugins are using REST-API to maintain user sessions, which was the case for me. If not, then it must be a faulty plugin causing this. You will need to disable them one by one to check – however, it is usually the latest update/plugin activations that are the culprit.

Thanks for quick reply. I use a plugin: Advanced Shippment Tracking. This plugin is available on wordprss.org and for free.

The plugin does provide its various Shipping Providers in the app to update tracking details. For example: I can go to an order and select shipment provider + upload tracking number. Additionally, the list of providers is controlled by this very plugin.

@jffaria It is a production site. I have already downgraded it. Besides, trying is not an option since it is a production site.

I had done it via their website. I did it via wc.com now.
System report shared.

I would be rather comfortable sharing it on a private forum. The plugin/themes are all up to date. Additionally, I know my way around WordPress, Woocommerce and MySQL queries. So you can guide me on debugging this issue and I can get you whatever it is you wish to obtain.

I believe you must have wanted to know if my theme templates are outdated: They are all compatible with the current WC version.

I use the AUTOMATE WOO plugin, the official by WC to capture and target my customers. I was hoping that the issue was related to this, but it is not. The issue arises in spite of deactivating the AW plugin.

I have been trying to explore the woocommerce_sessions table to see what carts are getting mixed between users. However, it is too difficult to trace and understand this issue. It happens randomly.

Believe me, if I know how to replicate the issue, I would have applied the patch by now.

Hi,
Can we share this info in a non-public forum? I do not mind it.

Most certainly! Waiting for my site to ask me to update.