Each blog post having the same page title

I have created a blog within my Squarespace website. I now noticed that each blog post I have are showing the exactly same page title regardless of what I have typed as the page title for the specific blog post or in the optional SEO title in the blog post settings. Anyone had this issue and know how to solve it? So the page titles each blog post are showing is the page title of the blog summary page. Thanks for any help!

AR

Can you post a link to your site?  Some problems, and solutions,  can be unique to a template's setup.