Movable Ancient Debris can be destroyed by TNT during a brief timing window while being moved by pistons.

When Ancient Debris is moved using pistons, there is a short moment during the movement tick where it becomes vulnerable to TNT explosions. Normally, Ancient Debris should be completely blast-resistant and indestructible by TNT. However, during this specific piston movement timing, the block can be destroyed, which breaks the expected behavior and consistency of blast resistance.