Big problem with 4.12 and skins

[btasm]

I've just installed the 4.12 patch over a perfectly clean 4.11.1 install.
Now, for each aircraft, I essentially have one skin. For example, all Bf109s (E, G, etc) have a single skin, either winter or summer. Changing countries does not alter the markings. "Markings on" or "Markings off" makes no difference.

Can anyone explain what's up?

Thanks.