Crosse and Blackwell Mayo, was the best and is now the worst ever

I have been buying Crosse and Blackwell as the best mayonnaise for more than 30 years. Recently the last 2 bottles I have had taste ****** awful, like its off or something. I see other people have been complaining of the same thing. Have they changed their ingredients or recipe??? I have just thrown my new bottle in the bin after is ruined my chicken mayo sandwich and made it taste disgusting!! I will be looking for a new brand until something is done. I hope the manufacturers answer truthfully about any product/recipe change.