It would be great to know if anyone has resolved the issue with Google choosing their /collections/all page over pages which were originally ranking. See below screenshot as an example.
When visiting the Coverage tab on my Webmaster Tools, it is showing these collection pages as "Duplicate, submitted URL not selected as canonical" – but I'm struggling to see why Google is seeing this as a problem?
I was wondering if anyone has had the same problem with me and could advise as to why this is happening? As far as I'm aware, nothing on my site is informing Google to index the All Products page (correct me if I am wrong), as opposed to my Collection pages.
This is happened out of the blue and haven't had any major changes happen to these pages on the website and it has happened to most collection pages on the website, causing for many ranking drops.
This is an odd one for sure.
I am going to give advice based purely on assumptions of what I know and what I assume. Google shows pages based on what it thinks the page is about. In your case, the collections/all and /freestanding-wine-fridges pages are both about wine fridges and something on your collections/all page is telling google that it is the correct page to show for what I assume is a keyword related to wine fridges.
You can try the following solutions:
I hope this helps.
Let me know if you are still battling with this.