Vantage Child Theme template not being called

Hi

Having trouble getting our Vantage Child Theme working. The child theme does appears not to be called and hence any php in the child theme is not executing.

Saw this Thread – https://siteorigin.com/thread/wp-vantage-template-tags-php/

Added the suggested code into the Functions.php file in the Child theme. Also checked the other Vantage child theme guides dotted about.

Child theme style.css is the following:

/*
 Theme Name:   Vantage Child the second
 Author:       SiteOrgin
 Template:     vantage
 Version:      1.0.0
*/
@import url("../vantage/style.css");
/* ---- Add changes below ---- */
body {
  background: #f00;
}

Added in an error_log(); command in child functions, template-tags.php AND template-tags.php in the parent theme.

Log file looks like this :

[Fri Nov 27 15:56:06 2015] [error] [client xxx.xxx.xxx.xx] I am in child functions
[Fri Nov 27 15:56:06 2015] [error] [client xxx.xxx.xxx.xx] I am in template tags – master

Note: I have written xxx.xxx.xxx.xx over the client IP in the log above.

Checked permissions, spellings and other things. Still cannot get the code in the child ./inc/template-tags.php to work.

We are running the latest version of the theme. We have also taken out all plugins, but again no change to functionality.

Any guidance would be appreciated.

Thank you

Allen