Question on title of movie: "Symptoms" aka "The Blood Virgin"

Link to page in question:https://www.imdb.com/title/tt0072239/

When not signed in to IMDB, the title shows as "The Blood Virgin", but on signing in as a UK resident it swaps over to Symptoms. I've looked over the page and at the list of titles by country, and it is listed as "Symptoms" on all named countries, but then only as "The Blood Virgin" for a mysterious world wide English language release, when I'm not sure what countries this would be referring to, or why that would override the other name?

Is this an error? All the posters appear to be Symptoms, English and other language releases all appear to be "Symptoms" or their localised equivalent, so I'm really not sure why it's getting the worse title as the default.