Sorry but wtf is happend with the volcanos.
before: http://i.imgur.com/3GGnZrJ.jpg huge and pretty
now: http://i.imgur.com/EI9Z5eb.jpg small and ugly

I use the 4.6.2.82 version.
Is that intentional or a compatibility problem with other mods???

Thats because is volcano junior, the son of the original volcano.

They are more diverse. It is not as common for them to be very high anymore, though it is still very much possible.