Posts page URL capitalisation issue /Blog or /blog

Using current Tempera theme.

Have recently moved my WP install from /blog to the root directory. All has gone well, but the posts page is only accessible via https://www.kruselegal.com.au/Blog/ and not via the all lowercase https://www.kruselegal.com.au/blog/

I can change the name of the page, but not the permalink – which always default to the lowercase “b”

A redirection plugin hasn’t helped.

The posts page is using the Blog Template (Posts Page) as the template which creates this code:

[add_posts  show=99 h=3 full=false readmore=”Read more link text” img=true]

Website: www.kruselegal.com.au