Post Page displays Static Front Page, not Posts

Hi all —

I want my website (https://www.ladywithelectrichair.com) to have a 2 pages: a Static Front page and a Blog Page.

I created 2 pages: 1 that contains all the content for the Static Front page, and another entitled “The Blog” that I left totally blank.

Under “Settings — Reading” I have selected the Static Front page for “Front page” and selected “The Blog” for Posts page.

However, the permalink to my Posts page only displays the front static page:
https://www.ladywithelectrichair.com/?page_id=295/?page_id=394

Based on the following thread, I’m guessing I’m having an template issue, but I don’t know how to resolve it. Any help?
https://www.ads-software.com/support/topic/posts-page-is-showing-home-page?replies=8