I have freshly installed ee6.0.1 and found that url path settings page that under Website Index Page, the box is empty. I wrote down index.php because that is where you input it but no matter how many times I save it, its not updating and you can reproduce it.
I tried changing other options such as selecting underscore from hyphen and category titles from category id and save it, and it was updated.
I have report this at github but am new so I don’t know if its accepted or not.
So the bug is the website index page box.
If templates dont work, ee6.0.1 cant work.
Thanks for posting this. We’ll test and confirm we can replicate and patch accordingly.
Thanks for passing this along!
Also, for anyone reading along, we’ll provide additional updates on the github issue