Hello,
1/ Try to disable all the third-party plugins (including cache plugins), that do not come bundled with XStore https://xstore.helpscoutdocs.com/article/36-included-plugins , clear cache of browser, and check then. Maybe one of the additional plugins is a reason for the problem.
2/ Try to disable Variation swatches via Theme options > WooCommerce > Shop elements
Let us know results
Regards