On the front end, when I visit the Blog page (https://coloursbykarat.com/blog/), I see the blog posts (there is only one so far) and the template that I specified. So far, so good.
However, when I visit the wishlist page (https://coloursbykarat.com/wishlist/), instead of the markup to let em manage wishlists, I see…the blog article and the template that I specified for the blog page!
As David already stated everything looks fine “from the outside”. If you can provide us with some temporary credentials to your site we’re happy to help you investigating your issue regarding the logged in state. As usual please send those credentials to email@example.com and include a link to this forum thread.