Meta Title Not Displaying Correctly in Search

Hi,

I'm having some trouble with my Meta title and the way it's showing in search. In our website code and in the Yoast plugin, the meta title is displayed as follows:

Keyword 1 – Keyword 2 | UK | Brand Name

Up until last week, search was displaying an incorrect Meta of:

Brand Name: Keyword 1 – Keyword 2 | UK

Last week, the Meta title changed to be correct and we saw a 3 point increase in search rankings, however this morning it has changed back to the incorrect Meta…

Meta Title Not Displaying Correctly in Search