The name of the block is firefly bush and it is supposed to emit the firefly particles all the time after it gets dark but the particles don't start coming. When the player move closer to the bush then it start emitting the particles. This should be fixed very soon.

Fix Needed:  The particle starts coming after it gets darker even if the player is close to the block or not.

The particles starts to fade away after some time when the player moves away from the firefly bush.