You did change by moving blocks under component, that is why It doesn't work for old themes.
I have fixed problems.
CSS Not loading?
I am not sure if this is totally correct, but, with the new update the following happened:
and I feel like it's the CSS that hasn't loaded? Is anyone else getting this issue?
Did you try resetting your theme and skin to defaults? Any error messages in your browser console?
I noticed this on MangoLassi.it as well for a couple days. I just assumed it was my issue. As the issue has gone away, I assume I was right.