Hello,
Apologies for this but we are not able to support fully WPML instances.
Our plugin is not fully compatible with WPML. Actually, WPML creates different instances of page/post/product and settings. The booster will save settings in a single option that’s why you are facing this issue.
As we have described in our document we have basic support for WPML.
But there is one possibility for the fix.
Maybe the issue will resolve by setting the custom_field_* field to “Copy” in WPML’s “Multilingual Content Setup” located in the product. This copies all these settings from the original product language to the translated products.
You can try this.
Thanks,
Booster.io – Support Team