Child Theme Setup - Single.php

[NotGuilty]

Hi,

Scratching my head trying to figure this out. I think I've managed to create my child theme as I did with Rev 4. The problem is my single.php continues to render even after having created single-cpt.php

I have two custom post types and neither of the new single-cpt.php are working.

Have tried flushing cache but no joy. Is there another method for creating child themes that actually works with Reverie 5?