Hi there,
I’m sorry to hear you’re running into trouble after the WooCommerce update. Since the Add to Cart button functionality is often controlled directly by your WordPress theme’s templates, the issue might be a conflict between the new WooCommerce version and your current theme or another active plugin.
To narrow this down, I recommend following this troubleshooting guide: ThemeIsle Troubleshooting Guide
Specifically, I suggest trying the following:
- Switch to a default theme: Temporarily activate a standard theme (like Storefront or Twenty Twenty-Four) to see if the button works. If it does, the issue is likely within your original theme.
- Plugin Conflict Test: Deactivate your other plugins one by one (except WooCommerce and PPOM) to see if a third-party plugin is causing the interference.
Let us know what you find after testing with a default theme
Heads-up that WooCommerce 10.5 introduced an update to the variable products template and script.
I wasn’t able to reproduce the issue with PPOM, but if any of the plugins installed is dequeuing the default script while using the default template, that might be the cause.
There is more information here:
https://developer.woocommerce.com/2026/01/16/add-to-cart-button-disabled-by-default-in-variable-products-in-woocommerce-10-5/
