[Plugin: All in one SEO pack] Wrong title displayed

Hi
I am using this SEO plugin to optimize my positioning in the browser. I want to set the title of my home page (in the browser/snipet) like follows:
“Website title | Company name”.
This is exactly how I have it configured in the Plugin settings at Home title, and also at the Home page SEO Home title. However, the display I get in the browser is:
“Company name: Website title”

How can I solve it?

Thanks