With the newest version of MT, I go into a web log and click on 'Templates', then proceed to delete all templates except 'Date-based archive'.

I then go to 'weblog config' => 'archive files' and the 'Individual' and 'Category' entries appear to be broken. There is no way via the UI to delete them since the box doesn't show up. I suspect it's just a database reference not being removed when I removed the archive templates from the 'Templates' section.

Another issue with a brand new setup is when you go to 'weblog config', the text box for 'Local Site Path' is filled in (I am thinking it gets it via a pwd), but it never updates the database so when you go to rebuild the site, an error occurs that you did not specify a local site path.

I had to go into the database to figure this one out since according to the user interface, a local site path is specified; however the mt_blog.blog_site_path field is NULL.

My suggestion is if you are supplying default values for the interface, the database needs to reflect this information. This was very confusing.