Program: 164030
Project: 164030
Buggy source:
@SuppressLint("String_Node_Str") @Override public void update(){
  super.update();
  left-=Game.elapsed;
  if (left <= 0) {
    kill();
  }
 else {
    float p=1 - left / lifespan;
switch (type) {
case STAR:
case FORGE:
      scale.set(1 - p);
    am=p < 0.2f ? p * 5f : (1 - p) * 1.25f;
  break;
case KIT:
case MASTERY:
am=1 - p * p;
break;
case EVOKE:
case HEALING:
am=p < 0.5f ? 1 : 2 - p * 2;
break;
case RED_LIGHT:
case LIGHT:
am=scale.set(p < 0.2f ? p * 5f : (1 - p) * 1.25f).x;
break;
case DISCOVER:
am=1 - p;
scale.set((p < 0.5f ? p : 1 - p) * 2);
break;
case QUESTION:
scale.set((float)(Math.sqrt(p < 0.5f ? p : 1 - p) * 3));
break;
case UP:
scale.set((float)(Math.sqrt(p < 0.5f ? p : 1 - p) * 2));
break;
case SCREAM:
am=(float)Math.sqrt((p < 0.5f ? p : 1 - p) * 2f);
scale.set(p * 7);
break;
case BONE:
case RATTLE:
am=p < 0.9f ? 1 : (1 - p) * 10;
break;
case ROCK:
am=p < 0.2f ? p * 5 : 1;
break;
case NOTE:
am=1 - p * p;
break;
case WOOL:
scale.set(1 - p);
break;
case CHANGE:
am=(float)Math.sqrt((p < 0.5f ? p : 1 - p) * 2);
scale.y=(1 + p) * 0.5f;
scale.x=scale.y * (float)Math.cos(left * 15);
break;
case HEART:
scale.set(1 - p);
am=1 - p * p;
break;
case BUBBLE:
am=p < 0.2f ? p * 5 : 1;
break;
case STEAM:
case TOXIC:
case PARALYSIS:
case CONFUSION:
case DUST:
am=(float)Math.sqrt((p < 0.5f ? p : 1 - p) * 0.5f);
scale.set(1 + p);
break;
case VENOM:
hardlight(ColorMath.interpolate(0x8844FF,0x00FF00,p));
case STENCH:
am=(float)Math.sqrt((p < 0.5f ? p : 1 - p) * 0.5f);
scale.set(1 + p);
break;
case JET:
am=(p < 0.5f ? p : 1 - p) * 2;
scale.set(p * 1.5f);
break;
case COIN:
scale.x=(float)Math.cos(left * 5);
rm=gm=bm=(Math.abs(scale.x) + 1) * 0.5f;
am=p < 0.9f ? 1 : (1 - p) * 10;
break;
}
}
}

Fixed version (ground truth):
@SuppressLint("String_Node_Str") @Override public void update(){
  super.update();
  left-=Game.elapsed;
  if (left <= 0) {
    kill();
  }
 else {
    float p=1 - left / lifespan;
switch (type) {
case STAR:
case FORGE:
      scale.set(1 - p);
    am=p < 0.2f ? p * 5f : (1 - p) * 1.25f;
  break;
case KIT:
case MASTERY:
am=1 - p * p;
break;
case EVOKE:
case HEALING:
am=p < 0.5f ? 1 : 2 - p * 2;
break;
case RED_LIGHT:
case LIGHT:
am=scale.set(p < 0.2f ? p * 5f : (1 - p) * 1.25f).x;
break;
case DISCOVER:
am=1 - p;
scale.set((p < 0.5f ? p : 1 - p) * 2);
break;
case QUESTION:
scale.set((float)(Math.sqrt(p < 0.5f ? p : 1 - p) * 3));
break;
case UP:
scale.set((float)(Math.sqrt(p < 0.5f ? p : 1 - p) * 2));
break;
case SCREAM:
am=(float)Math.sqrt((p < 0.5f ? p : 1 - p) * 2f);
scale.set(p * 7);
break;
case BONE:
case RATTLE:
am=p < 0.9f ? 1 : (1 - p) * 10;
break;
case ROCK:
am=p < 0.2f ? p * 5 : 1;
break;
case NOTE:
am=1 - p * p;
break;
case WOOL:
scale.set(1 - p);
break;
case CHANGE:
am=(float)Math.sqrt((p < 0.5f ? p : 1 - p) * 2);
scale.y=(1 + p) * 0.5f;
scale.x=scale.y * (float)Math.cos(left * 15);
break;
case HEART:
scale.set(1 - p);
am=1 - p * p;
break;
case BUBBLE:
am=p < 0.2f ? p * 5 : 1;
break;
case STEAM:
case TOXIC:
case PARALYSIS:
case CONFUSION:
case DUST:
am=(float)Math.sqrt((p < 0.5f ? p : 1 - p) * 0.5f);
scale.set(1 + p);
break;
case VENOM:
hardlight(ColorMath.interpolate(0x8844FF,0x00FF00,p));
case STENCH:
am=(float)Math.sqrt((p < 0.5f ? p : 1 - p));
scale.set(1 + p);
break;
case JET:
am=(p < 0.5f ? p : 1 - p) * 2;
scale.set(p * 1.5f);
break;
case COIN:
scale.x=(float)Math.cos(left * 5);
rm=gm=bm=(Math.abs(scale.x) + 1) * 0.5f;
am=p < 0.9f ? 1 : (1 - p) * 10;
break;
}
}
}