Possibly related – I’ve just done a clean install of Flat Responsive 1.2.2 and while it installed fine, I get an error when I install the Child theme ….this might be the cause of the problem. The error message is:
The following themes are installed but incomplete. Themes must have a stylesheet and a template.
Flat Responsive Child The parent theme is missing. Please install the “flat-responsive-pro” parent theme.
The last line is confusing as “flat-responsive-pro” is installed and active….but it might point to the root cause.