Fix Shopify Cart Quantity & Pixel

The quantity selector vanished from my Shopify cart and needs to come back exactly where shoppers expect it, behaving normally on both desktop and mobile. At the same time, I want to be 100 % sure my tracking is solid: the native Shopify pixel and my Meta (Facebook) pixel must both fire correctly across product views, add-to-cart, checkout initiation and purchase events.

I haven’t changed any theme liquid myself, but I do run a few standard apps, so you may need to scan recent updates or snippets that could be blocking either feature.

What I’d like from you:
• Restore the quantity selector in the cart, matching my current theme’s styling.
• Test and confirm that the selector updates totals, shipping estimates and any cart-drawer logic without glitches.
• Audit pixel implementation, fix mismatches or duplicate events, and prove the fix with the Meta Events Manager and Shopify’s diagnostics.
• Provide a brief note of the files or settings you touched so I can keep future updates clean.

If you have Shopify theme-editing experience and know your way around Facebook’s Commerce Manager or the Event Testing Tool, this should be straightforward. Please let me know your expected turnaround time and any access you’ll need.