Program: 70832
Project: 70832
Buggy source:
@Override public void render(Renderer renderer,int flags){
  if (!isSelectable() && renderer.isSelecting()) {
    return;
  }
  RenderProps rprops=getRenderProps();
  rprops.getFaceColor(rgb);
  if (isSelected()) {
    renderer.getSelectionColor(rgb);
  }
  float fTextSize=(float)(myTextSize / getFontSize());
  Rectangle2D box=myTextRenderer.getBounds(myText);
  double w=box.getWidth() * fTextSize;
  double t=myTextSize * 0.75;
  double vc=myTextSize * 0.25;
  rEye.invert(renderer.getViewMatrix().R);
  if (followEye) {
    rEye.getColumn(0,xdir);
  }
 else {
    xdir[0]=1;
    xdir[1]=0;
    xdir[2]=0;
  }
  renderPos.setZero();
switch (hAlignment) {
case CENTRE:
    renderPos.add(-xdir[0] * w / 2,-xdir[1] * w / 2,-xdir[2] * w / 2);
  break;
case RIGHT:
renderPos.add(-xdir[0] * w,-xdir[1] * w,-xdir[2] * w);
break;
default :
break;
}
if (followEye) {
rEye.getColumn(1,xdir);
}
 else {
xdir[0]=0;
xdir[1]=1;
xdir[2]=0;
}
switch (vAlignment) {
case CENTRE:
renderPos.add(-xdir[0] * vc,-xdir[1] * vc,-xdir[2] * vc);
break;
case TOP:
renderPos.add(-xdir[0] * t,-xdir[1] * t,-xdir[2] * t);
break;
default :
}
myTransform.setRotation(myOrientation);
if (followEye) {
myTransform.R.mul(rEye,myTransform.R);
renderPos.inverseTransform(rEye);
}
renderPos.transform(myTransform.R);
renderPos.add(myPos);
myTransform.p.set(renderPos);
renderer.pushModelMatrix();
renderer.mulModelMatrix(myTransform);
myTextRenderer.begin3DRendering();
myTextRenderer.setColor(rgb[0],rgb[1],rgb[2],(float)rprops.getAlpha());
myTextRenderer.draw3D(myText,0,0,0,fTextSize);
myTextRenderer.end3DRendering();
renderer.popModelMatrix();
}

Fixed version (ground truth):
@Override public void render(Renderer renderer,int flags){
  if (!isSelectable() && renderer.isSelecting()) {
    return;
  }
  RenderProps rprops=getRenderProps();
  rprops.getFaceColor(rgb);
  if (isSelected()) {
    renderer.getHighlightColor(rgb);
  }
  float fTextSize=(float)(myTextSize / getFontSize());
  Rectangle2D box=myTextRenderer.getBounds(myText);
  double w=box.getWidth() * fTextSize;
  double t=myTextSize * 0.75;
  double vc=myTextSize * 0.25;
  rEye.invert(renderer.getViewMatrix().R);
  if (followEye) {
    rEye.getColumn(0,xdir);
  }
 else {
    xdir[0]=1;
    xdir[1]=0;
    xdir[2]=0;
  }
  renderPos.setZero();
switch (hAlignment) {
case CENTRE:
    renderPos.add(-xdir[0] * w / 2,-xdir[1] * w / 2,-xdir[2] * w / 2);
  break;
case RIGHT:
renderPos.add(-xdir[0] * w,-xdir[1] * w,-xdir[2] * w);
break;
default :
break;
}
if (followEye) {
rEye.getColumn(1,xdir);
}
 else {
xdir[0]=0;
xdir[1]=1;
xdir[2]=0;
}
switch (vAlignment) {
case CENTRE:
renderPos.add(-xdir[0] * vc,-xdir[1] * vc,-xdir[2] * vc);
break;
case TOP:
renderPos.add(-xdir[0] * t,-xdir[1] * t,-xdir[2] * t);
break;
default :
}
myTransform.setRotation(myOrientation);
if (followEye) {
myTransform.R.mul(rEye,myTransform.R);
renderPos.inverseTransform(rEye);
}
renderPos.transform(myTransform.R);
renderPos.add(myPos);
myTransform.p.set(renderPos);
renderer.pushModelMatrix();
renderer.mulModelMatrix(myTransform);
myTextRenderer.begin3DRendering();
myTextRenderer.setColor(rgb[0],rgb[1],rgb[2],(float)rprops.getAlpha());
myTextRenderer.draw3D(myText,0,0,0,fTextSize);
myTextRenderer.end3DRendering();
renderer.popModelMatrix();
}