The products variations are not working properly and it is impossible to publish new products using variations.
After linking all variations, I usually bulk edit "prices" and "sale prices" and then click on the publish button.
After that nothing happen and it is impossible to publish the new product.
However if I just bulk edit "prices" and then click publish, the product is published without issue.
So the issue is related to the "sale prices" bulk edit function.
This issue appeared on 2.1.3, 2.1.4, and 2.1.5 woocommerce version.
The problem appear on the testing website using woocommerce 2.1.5.
I am using woocommerce 2.1.2 version on the production website and there is no issues.
If anyone has some idea to help I will really appreciate ~