I've run the Gelid and Rockin bees through multiple lifespans with no genetic modifications, and I can't get the Gelid to drop Cryotheum dust, and I can't get the Rockin to drop Petrotheum dust. JEI is telling me that there is a 9% chance for drops. The Pyro and Amped bees are dropping the secondary thermal item though.
Bees only produce their speciality if they are jubilant, which by default means they must be in a biome with the exact temerature & humidity the bees prefer, not just within the range of accepted values.
I've run the Gelid and Rockin bees through multiple lifespans with no genetic modifications, and I can't get the Gelid to drop Cryotheum dust, and I can't get the Rockin to drop Petrotheum dust. JEI is telling me that there is a 9% chance for drops. The Pyro and Amped bees are dropping the secondary thermal item though.
I'm using the 1.12.2-3.1.9 version of Magic Bees.