I see the old size still there (Talking about The Treehouse BB) as I am viewing the source BlackSparrow so let BbBoy look it over when he is on tomorrow and I am sure we can figure out what is going on-are you using the easy customization and if so did you 'Clobber' the CSS?
There was a bug a bit ago that kept changes from saving if you used the Easy Customization-for Text Colour-could be you've found another one...If you can leave details here of whether you used the EC or not we'll get right on it tomorrow.
I kinda figured it wasn't a cached page and that you'd already tried it but I know it has happened to me sometimes so I thought I would mention it just in case. If I knew how you had set it up I could go test it myself but I definitely see the size is still 14px on The Treehouse. :smash: