Creeper don't do damage

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
The creeper blows up
What actually happened was...:
Describe what happened here
Nothing gets Damaged only torches
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. Let a creeper blow up
3. No blocks will be destroyed only torches