Problem: If you're experiencing issues with the WooCommerce shopping cart not adding more than 2 products or forgetting products when the WooCommerce Multilingual & Multicurrency plugin is enabled, this might be due to a plugin conflict. Solution: We recommend following the steps outlined in the WPML support forum to resolve this issue. You can find the detailed steps here: WPML support forum thread.
If this solution does not apply to your case, or if it seems outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. Should these steps not resolve your issue, please do not hesitate to open a new support ticket with us for further assistance at WPML support forum.