'Divergent-Underground' mod changes ore/rock drops from ore/rock blocks, but in 'Block Drops' still show old default drop.
it concerns vanilla minecraft, and Mekanism and ImmersiveEngineering ores.
but eg in Quark - it shows all stones correctly

try deleting blockdrops.txt and restart the game

i did.
did not help.
all the same.

issue also applies to BiomesoPlenty and TinkersConstruct, i checked.
eg. minecraft gold ore shows 'stone rock' drop, but no 'gold ore' drop. but she have it!
maybe problem on DivergentUnderground side? but in game all works right, only shows wrong in 'block drops'