Maybe you could fade out the material opacity over time like I did with my footprint decals? These start fading out as soon as they’re spawned and fade out over 59 seconds before getting destroyed at the 60th second when they’re invisible. I create a dynamic material instance and set the SpawnTime from the character blueprint when they’re spawned. Perhaps some kind of similar thing would be possible with the chunks. (I think there’s some optional bits in my blueprint.)
