Can't drag and drop bookmarks & bookmark folder in Safari
I use to be able to reorganize my Safari bookmarks by simply dragging them where I wanted, whether it's to a different folder or to a different position within the same folder. In fact, the Safari user's guide states that I should be able to "drag bookmarks and folders to rearrange them"; however, it just won't work for me anymore.
Can anyone help? Thanks!
MacBook Pro 13″, macOS 10.15