[1.81] [MinecraftForge-1.4.0.55] explosives problem

Hi!, in SMP ONLY, when I ignite a presicion TNT or a NUKE, the blocks disapear (but they explode).

PD: nukes dont harm mobs or animals, only the tarrain

I update Forge up today, and it seems that now animals die in a nuke explosion. But the radius of death is too short. The terrain is affected 4-5 times beyond the kill/damage radius. I think that this should be "fixed" to terrain damage radius less or equal than kill radius or something like that.