Customize CSS now not showing?

[haptalaon]

Hello all - new to DW themes but not new to CSS, and maybe tripping over myself.

I've added some custom CSS on the Customize Your Theme >> Custom CSS page, and it was appearing and looking marvellous. Then - all of a sudden - it stopped displaying my custom tweaks on my journal.

I've tried Ctrl+f5 to refresh my cache, and tried removing the code - saving - replacing it - saving again, and using an external URL. I've also used Inspect on the journal page, to check and confirm that my code isn't appearing at all (it's as if it doesn't exist). I'm feeling low now, as I liked my changes and my basic journal looks dull.

I've got a free account only - is that the issue? Or is this some weird quirk I don't understand....?

Cheers all!