When out of my town in towny and fighting mobs, creepers go through the animation of exploding, then completely disappear with no sound or damage to myself and the surrounding terrain. After checking this multiple times in Towny with the same result, I went to a home I have in Horizon and tried again there. The creepers would go through the animation for exploding and they would explode, but again there is no damage to myself at all or the surrounding landscape.
Before Bungee, creepers in both worlds would completely go though their animation with resulting damage to myself and area, with proceeding repair.
Cheers!
