I have set some paths to not being cached... Cache every page except the listed pages.
for example: /shop
but if I enter into /es/shop (spanish version in multilanguage site) then boost caches and creates the folder es and then a cached html of shop.
I think that if I enter /shop to not being cached that applies to all language versions too..
the manual fix is to add also /es/shop in the list of paths
but this also happens with standard not cached by default pages .. like /user/register... I was having /es/user/register being cached which didn't work because I need not to be cached because it has a captcha.