Hello,
When did variations work fine as you expected? Our changes can’t affect them. The plugin you are using does not replace the featured image, just slide images – https://demo.getwooplugins.com/woocommerce-variation-swatches/product/slim-ring-18k https://demo.getwooplugins.com/woocommerce-variation-swatches/product/sisu-bravado-bq1/ https://demo.getwooplugins.com/woocommerce-variation-swatches/product/nike-air-vapormax-plus-group/ Sorry, but we are not responsible for the work of 3rd party plugins.
Regards
