when you put lava in the middle of tnts and wait tell the tnts blow up and if you just stay on top of the tnt it pushes you up high in the sky

Put the summary of the bug you're having her
What I expected to happen was...:
For the tnt to blow up

What actually happened was...:
I was on the tnt and it pushed me relly high

Steps to Reproduce:
1. Make a squre shape out of tnts in creative moed
2. ...then but lava in the middle
3. ...and fly and stay on top of the tnt that is about to exploedand watch the tnt fly you sky high.