I appreciate the context that you have shared as well as letting us know which theme you are using. Looking into theFlex theme, it looks like this is a third-party theme thatis developed and supported byOut of the Sandbox.Since this theme was not created directly by Shopify, we are a bit unfamiliar with the coding style that is used within the theme. With that being said, it would be best to reach out to the developers of the theme and make them aware of this issue you are facing. They should be able to provide you with additional support to the matter.
I did want to provide theirContact Us pagethat I came across while looking into this.
Let me know if you have any additional questions.
Ollie | Social Care @ Shopify - Was my reply helpful? Click Like to let me know! - Was your question answered? Mark it as an Accepted Solution - To learn more visit the Shopify Help Center or the Shopify Blog