Please help - Preview works but not scraping - Another one

How to?
#1

I keep running into this problem in various forms. I wish I could understand what is happening? Any help is greatly appreciated. The preview works perfectly but the scrape is empty. This website is slow so please use 90 second Page load delay.

https://www.boots.com/sensodyne-gentle-whitening-toothpaste-75ml-10252541

{"_id":"boots-paginate-complete","startUrl":["https://www.boots.com/sensodyne-gentle-whitening-toothpaste-75ml-10252541"],"selectors":[{"id":"container","type":"SelectorElement","parentSelectors":["page"],"selector":"div.bv-content-item-avatar-offset>div.bv-content-container>div.bv-content-core","multiple":true,"delay":0},{"id":"Date","type":"SelectorText","parentSelectors":["container"],"selector":"span.bv-content-datetime-stamp","multiple":false,"regex":"","delay":0},{"id":"author","type":"SelectorText","parentSelectors":["container"],"selector":"[itemprop='author'] span","multiple":false,"regex":"","delay":0},{"id":"postTitle","type":"SelectorText","parentSelectors":["container"],"selector":"h3","multiple":false,"regex":"","delay":0},{"id":"text","type":"SelectorText","parentSelectors":["container"],"selector":"p","multiple":false,"regex":"","delay":0},{"id":"score_Rating","type":"SelectorHTML","parentSelectors":["container"],"selector":"span.bv-rating-stars-container","multiple":false,"regex":"\d","delay":0},{"id":"page","type":"SelectorElementScroll","parentSelectors":["_root"],"selector":"[id^="BVRRContainer"]","multiple":false,"delay":2000}]}

#2

Okay, figured this one out - I had to try different selectors until it worked. I don't know enough to know how to pick the right selector, but there are only so many and trying them all was not too hard.

Here is the working site map:

{"_id":"boots-paginate-complete","startUrl":["https://www.boots.com/sensodyne-gentle-whitening-toothpaste-75ml-10252541"],"selectors":[{"id":"container","type":"SelectorElementClick","parentSelectors":["page"],"selector":".bv-content-core","multiple":true,"delay":2000,"clickElementSelector":"span.bv-content-btn-pages-load-more-text","clickType":"clickMore","discardInitialElements":"do-not-discard","clickElementUniquenessType":"uniqueText"},{"id":"Date","type":"SelectorText","parentSelectors":["container"],"selector":"span.bv-content-datetime-stamp","multiple":false,"regex":"","delay":0},{"id":"author","type":"SelectorText","parentSelectors":["container"],"selector":"[itemprop='author'] span","multiple":false,"regex":"","delay":0},{"id":"postTitle","type":"SelectorText","parentSelectors":["container"],"selector":"h3","multiple":false,"regex":"","delay":0},{"id":"text","type":"SelectorText","parentSelectors":["container"],"selector":"p","multiple":false,"regex":"","delay":0},{"id":"score_Rating","type":"SelectorHTML","parentSelectors":["container"],"selector":"span.bv-rating-stars-container","multiple":false,"regex":"\d","delay":0},{"id":"page","type":"SelectorElementScroll","parentSelectors":["_root"],"selector":"#BVRRContainer div.bv-cleanslate","multiple":false,"delay":"4000"}]}