While defining Goal from Home Page in Google Analytics, it is very essential to ensure to clearly define the Home Page path file name in the funnel. Because the home page funnel may be /, index. or any other option. So, it is very essential to fetch the right file name while setting the Goal funnel. Otherwise, the funnel visualization inference will go wrong. Voice of experience
Even we set the Home page file name like index.html in GA, while setting the Goal funnel, the GA will take the .index.html in the sub directory. Beware of this bug.
Solution: Use Virtual Pageviews for Home Page