I have my custom minecraft v1.6.4 mod pack with following mods: full list. The thing is that I want to create mob spawner based on cursed earth: dark room with grinders from MFR and stuff. But the strange thing appeared to me - when I performed ritual to activate division sigil - no mobs were spawned... at all... after lightning stroke, cursed earth appeared but without any mobs. And when I prepared spawner, placed cursed earth and turned off the light - nothing happened. Room is completely dark but no mobs are spawning. I looked extra utilities config file, but found no settings to activate/deactivate/allow/disallow mob spawning on cursed earth. What could be the problem in?
P.S. Also the other issue is that cursed earth starts to burn with white lamp from project red 4 blocks above. In this let's play dw20 has 3 blocks of space between lamp and soil and everything is fine. I have Extra Utilities v1.0.1. Maybe should I just update it to newer version?
P.P.S. Well, I updated extra utilities to newest version (1.0.3c) at a time - it didn't help.