Moved WordPress now it forgets

Hi,

I’ve moved my WordPress from a subdomain to the main domain this evening and changed the urls in wordpress and in the database from the subdomain to the main domain.

However WordPress keeps forgetting I want it to view a static page rather than the blog posts as the homepage.

I set it to view a certain page as the homepage but it keeps going back to blog posts.

Any one any idea why this would be?