*What I expected to happen was...:
The nether brick was to stop a Ghast blast from hitting me. Also no energy from the blast was to go threw the Nether Brick.
What actually happened was...:
The Nether Brick was moving from the blast hit and fire was getting threw and set me on fire. The Ghast did fire many blast at the same area in a few seconds. Also the Ghast was not able to see me since I was digging a tunnel in Netherrack.
Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.