same problem here. v3.3 did not fix my problem.
When I go directly into store pages in my admin panel and click “view” on any of my “store pages” I get the “Page Not Found” message.
URL looks as follows: https://www.domainname.com/blog/store_page/pagename/
I also tried the “Pages Replace Websites” feature and it gives me the same result.
Please advise on some sort of solution…