This bug is not entirely solved yet (as of at least up to snapshot 24w07a).
If a TNT is placed at the bottommost piston of those in the image below, it will create a ghost block.
ATOM65
This bug is not entirely solved yet (as of at least up to snapshot 24w07a).
If a TNT is placed at the bottommost piston of those in the image below, it will create a ghost block.