Template not 'including media' when creating a new session

[Lana Banana]

I've saved a custom template that includes two audio clips (intro and outro for a weekly podcast recording), and I am of course selecting 'Include Media' when saving this template, but whenever I try and create a new session using this template, there is no audio being loaded up, and absolutely nothing in the clip list.

Am running PT 2021.3 on Mac 10.15.7 (Catalina), although this problem was still occurring on 2020.12.

I am saving the template within Documents > Pro Tools > Session Templates, with all my other regular templates.

Where is the media for templates supposedly stored??
Could I be missing something in PT Preferences?

Any thoughts/help much appreciated!