Stock manager – loading failed

I have the following config:
Stock MAanger : Version 2.5.7
Woocommerce: Version 5.2.2
Wordpress: version: 5.7.1

Hi Support team,
Same to me on my page. I guess there is an update in need.
Best Alex

Hi there,

To rule out any possible plugin/theme conflict-related issue, please install the free plugin Health Check & Troubleshooting by WordPress and keep only WooCommerce and WooCommerce Stock Manager plugins active on the admin side of your site and then try to reproduce the same issue.
This doc will help you with setting it up.

Please try it and let us know how that goes for you.

Hi I have the same issue and managed to find the issue. I am running code snippets plugin and one specific snippet is doing this issue.

the following snippet looks like

function edit_price_display($price, $product) {
  
  $min_price = $product->get_variation_price('min');
  $max_price = $product->get_variation_price('max');
  
  $min_price_excl_tax = $min_price / 1.2;
  $max_price_excl_tax = $max_price / 1.2;
 
  $min_price_excl_tax = number_format($min_price_excl_tax, 2, ",", "."); 
  $min_price = number_format($min_price, 2, ",", "."); 
  $max_price_excl_tax = number_format($max_price_excl_tax, 2, ",", "."); 
  $max_price = number_format($max_price, 2, ",", "."); 
 
  if($min_price == $max_price){
	$display_price = '<span class="price">';
  	$display_price .= '<span class="amount">' . $min_price .' €<small class="woocommerce-price-suffix"> s DPH</small></span>';
  	$display_price .= '<br>';
  	$display_price .= '<span class="amount amount-excl">' . $min_price_excl_tax .' €<small class="woocommerce-price-suffix"> bez DPH</small></span>';
  	$display_price .= '</span>';
  }else{
	$display_price = '<span class="price">';
  	$display_price .= '<span class="amount">' . $min_price .' €<small class="woocommerce-price-suffix"> - </small>' . $max_price .' €<small class="woocommerce-price-suffix"> s DPH</small></span>';
  	$display_price .= '<br>';
  	$display_price .= '<span class="amount amount-excl">' . $min_price_excl_tax .' €<small class="woocommerce-price-suffix"> - </small>' . $max_price_excl_tax .' €<small class="woocommerce-price-suffix"> bez DPH</small></span>';
  	$display_price .= '</span>';
  }
 
  echo $display_price;
}
 
//add_filter('woocommerce_price_html', 'edit_price_display', 10, 2);
add_filter('woocommerce_variable_price_html', 'edit_price_display', 10, 2);

and even if I enable it only in the front end the stock manager will not work
I am running
WordPress 5.1.10 with Butique theme
Woocommerce 3.5.7
Woocommerce stock manager 2.6.0

Hi there,

Sorry for the trouble.

We will have a check with the same code snippet and do let you know our findings.