All entities within the damage radius of an explosion are damaged

The Bug

All entities within the damage radius of an explosion are damaged, even when there are blast-proof blocks between them. This is most noticeable with item frames and paintings since they are entities with only one health point.

To Reproduce

1. Build a 3×3×3 bedrock cage for an item frame.
2. Ignite a TNT next to the cage.
   • The item frame inside the cage is destroyed.