Mobile responsive version not selected by LMS

Hi

My responsive Captivate projects are appearing as desktop rather than mobile version on a mobile phone.  It looks like the LMS isn't choosing the correct version.  We are running a version of moodle and uploading them as scorm packages.  The moodle itself adapts to a mobile version but the captivate doesn't.

I'm really new to Moodle and i'm not totally sure whether this is a Captivate or a Moodle issue because i don't really understand how the device knows which version to select.  We are using Captivate 8.

I've tried a non-responsive project and this does work but I can't get that to size properly.  Whatever size i set it, it appears as very tiny strip in the centre of the phone screen.

Any response helpful!

Thanks