I am having this same issue. I have triple checked tags, and I am seeing products across all collections that do not belong there. What was the solution??
Topic summary
Product MD 20/20 is shown in the wrong collection on the live Shopify site despite correct tags and admin showing it belongs in “Fortified Wine.” Links provided indicate a mismatch between “Sparkling Wine” vs “Fortified Wine” pages.
Likely causes discussed: confusion between similarly named collections (“Fortified” vs “Fortified-wine”) and potential collection filters affecting visibility. Suggestion was to explicitly add the product to the intended collection or ensure auto-tag rules target the correct collection name.
A collaborator accessed the store and fixed the issue for the original poster, but the exact fix was not disclosed publicly. Screenshots were referenced as key evidence (product-to-collection mapping and live site display).
Subsequent commenters reported the same problem and asked for the solution, but no technical resolution was shared. Frustration grew over “contact for help” style replies without posting fixes, with calls for clearer, staff-backed answers.
Status: Resolved for the OP, but no published root cause; remains open/unclear for others.