Cannot update my post

Hello I am totally new to WordPress. So i have made a site and made it look good until i was satisfied. Now i made a post. But now i tried to change the text a litlle bit but it won’t update. The updated text saves in the text editor. When i click “update” it says that it was updated and when i click “example” the updated text shows on my site, but when i leave the preview and go to my site it didn’t change.