Mobile Variant Cart Bug Fix

On my Shopify storefront, any product variant chosen from a mobile device is ignored once the item reaches the cart—the default variant shows instead. The problem appears across every phone and tablet I have tried, yet it does not surface on desktop. I have not edited the theme code recently, nor installed new apps, so the root cause seems buried in existing liquid or JavaScript that only fires on smaller breakpoints. Here is what I need from you: • Diagnose the theme or script conflict that prevents the selected variant from being carried into the cart on mobile. • Apply a clean fix that works on both iOS and Android without breaking desktop behaviour. • Verify the solution on at least one iPhone and one Android device, sharing a quick screen-capture or screenshot set as proof. • Summarise the change in a short note so I can replicate it on staging or roll back if needed. I will grant theme code access through Shopify’s collaborator invite as soon as we start. A fast turnaround is preferred because customers are already reporting incorrect items at checkout.

Project ID: 40561577