Program: 81181
Project: 81181
Buggy source:
@Override public void render(float deltaTime){
  delta=Math.min(0.02f,deltaTime);
  startTime+=delta;
  touchTime+=Gdx.graphics.getDeltaTime();
  angleXBack+=MathUtils.sin(startTime) * delta * 10f;
  angleYBack+=MathUtils.cos(startTime) * delta * 5f;
  angleXFront+=MathUtils.sin(startTime) * delta * 10f;
  angleYFront+=MathUtils.cos(startTime) * delta * 5f;
  cam.update();
  if (player != null && player.isMoving) {
    player.position.add(player.direction.x * delta * 10f,player.direction.y * delta * 10f,player.direction.z * delta * 10f);
  }
  for (  MovableBlock m : movableBlocks) {
    if (m.isMoving) {
      m.position.add(m.direction.x * delta * 10f,m.direction.y * delta * 10f,m.direction.z * delta * 10f);
    }
  }
  collisionTest();
  sortScene();
  renderScene();
  if (Resources.getInstance().bloomOnOff) {
    frameBuffer.begin();
    renderScene();
    frameBuffer.end();
    Gdx.gl.glDisable(GL20.GL_CULL_FACE);
    Gdx.gl.glDisable(GL20.GL_DEPTH_TEST);
    Gdx.gl.glDisable(GL20.GL_BLEND);
    bloomShader.begin();
    frameBuffer.getColorBufferTexture().bind(0);
    bloomShader.setUniformi("String_Node_Str",0);
    bloomShader.setUniformf("String_Node_Str",Helper.map((MathUtils.sin(startTime * 3f) * 0.5f + (changeLevelEffect * 4f)) + 0.5f,0,1,0.67f,0.75f));
    frameBufferVert.begin();
    bloomShader.setUniformf("String_Node_Str",Resources.getInstance().m_fTexelOffset);
    bloomShader.setUniformf("String_Node_Str",0.0f);
    quadModel.render(bloomShader,GL20.GL_TRIANGLE_STRIP);
    frameBufferVert.end();
    frameBufferVert.getColorBufferTexture().bind(0);
    frameBuffer.begin();
    bloomShader.setUniformf("String_Node_Str",0.0f);
    bloomShader.setUniformf("String_Node_Str",Resources.getInstance().m_fTexelOffset);
    quadModel.render(bloomShader,GL20.GL_TRIANGLE_STRIP);
    frameBuffer.end();
    frameBuffer.getColorBufferTexture().bind(0);
    frameBufferVert.begin();
    bloomShader.setUniformf("String_Node_Str",Resources.getInstance().m_fTexelOffset / 2);
    bloomShader.setUniformf("String_Node_Str",Resources.getInstance().m_fTexelOffset / 2);
    quadModel.render(bloomShader,GL20.GL_TRIANGLE_STRIP);
    frameBufferVert.end();
    bloomShader.end();
    batch.setBlendFunction(GL20.GL_ONE,GL20.GL_ONE);
    batch.getProjectionMatrix().setToOrtho2D(0,0,Resources.getInstance().m_i32TexSize,Resources.getInstance().m_i32TexSize);
    batch.begin();
    batch.draw(frameBufferVert.getColorBufferTexture(),0,0);
    batch.end();
    batch.getProjectionMatrix().setToOrtho2D(0,0,800,480);
    if (Gdx.graphics.getBufferFormat().coverageSampling) {
      Gdx.gl.glClear(GL20.GL_COVERAGE_BUFFER_BIT_NV);
      Gdx.graphics.getGL20().glColorMask(false,false,false,false);
      renderScene();
      Gdx.graphics.getGL20().glColorMask(true,true,true,true);
      Gdx.gl.glDisable(GL20.GL_CULL_FACE);
      Gdx.gl.glDisable(GL20.GL_DEPTH_TEST);
      Gdx.gl.glDisable(GL20.GL_BLEND);
    }
  }
 else {
    Gdx.gl.glDisable(GL20.GL_CULL_FACE);
    Gdx.gl.glDisable(GL20.GL_DEPTH_TEST);
    Gdx.gl.glDisable(GL20.GL_BLEND);
  }
  if (!Resources.getInstance().debugMode) {
    fontbatch.getProjectionMatrix().setToOrtho2D(0,0,800,480);
    fontbatch.begin();
    font.draw(fontbatch,"String_Node_Str" + Resources.getInstance().currentlevel,620,80);
    Resources.getInstance().time+=delta;
    Resources.getInstance().timeAttackTime-=delta;
    if (mode == 0) {
      seconds=(int)Resources.getInstance().time % 60;
      minutes=(int)Resources.getInstance().time / 60;
    }
 else     if (mode == 1) {
      seconds=(int)Resources.getInstance().timeAttackTime % 60;
      minutes=(int)Resources.getInstance().timeAttackTime / 60;
    }
    if (seconds > 9 && minutes > 9)     font.draw(fontbatch,"String_Node_Str" + minutes + "String_Node_Str"+ seconds,620,60);
 else     if (seconds > 9 && minutes < 10)     font.draw(fontbatch,"String_Node_Str" + minutes + "String_Node_Str"+ seconds,620,60);
 else     if (seconds < 10 && minutes > 9)     font.draw(fontbatch,"String_Node_Str" + minutes + "String_Node_Str"+ seconds,620,60);
 else     font.draw(fontbatch,"String_Node_Str" + minutes + "String_Node_Str"+ seconds,620,60);
    fontbatch.end();
  }
  if (!finished && fade > 0) {
    fade=Math.max(fade - (delta * 2.f),0);
    fadeBatch.begin();
    blackFade.setColor(blackFade.getColor().r,blackFade.getColor().g,blackFade.getColor().b,fade);
    blackFade.draw(fadeBatch);
    fadeBatch.end();
  }
  if (finished) {
    fade=Math.min(fade + (delta * 2.f),1);
    fadeBatch.begin();
    blackFade.setColor(blackFade.getColor().r,blackFade.getColor().g,blackFade.getColor().b,fade);
    blackFade.draw(fadeBatch);
    fadeBatch.end();
    if (fade >= 1) {
      game.setScreen(new MainMenuScreen(game));
    }
  }
  if (!changeLevel && changeLevelEffect > 0) {
    changeLevelEffect=Math.max(changeLevelEffect - (delta * 15.f),0);
  }
  if (changeLevel) {
    changeLevelEffect=Math.min(changeLevelEffect + (delta * 15.f),5);
    if (!Resources.getInstance().debugMode) {
      if (mode == 1) {
        fontbatch.begin();
        timeAttackFont.draw(fontbatch,"String_Node_Str",740,40 - changeLevelEffect * 4);
        timeAttackFont.setColor(1,1,1,1 / changeLevelEffect);
        fontbatch.end();
      }
    }
    if (changeLevelEffect >= 5) {
      nextLevel();
    }
  }
  if (Resources.getInstance().timeAttackTime <= 0.5 && mode == 1) {
    finished=true;
    HighScoreManager.getInstance().newTimeAttackHighScore(0,Resources.getInstance().levelcount);
  }
}

Fixed version (ground truth):
@Override public void render(float deltaTime){
  delta=Math.min(0.02f,deltaTime);
  startTime+=delta;
  touchTime+=Gdx.graphics.getDeltaTime();
  angleXBack+=MathUtils.sin(startTime) * delta * 10f;
  angleYBack+=MathUtils.cos(startTime) * delta * 5f;
  angleXFront+=MathUtils.sin(startTime) * delta * 10f;
  angleYFront+=MathUtils.cos(startTime) * delta * 5f;
  cam.update();
  if (player != null && player.isMoving) {
    player.position.add(player.direction.x * delta * 10f,player.direction.y * delta * 10f,player.direction.z * delta * 10f);
  }
  for (  MovableBlock m : movableBlocks) {
    if (m.isMoving) {
      m.position.add(m.direction.x * delta * 10f,m.direction.y * delta * 10f,m.direction.z * delta * 10f);
    }
  }
  collisionTest();
  sortScene();
  renderScene();
  if (Resources.getInstance().bloomOnOff) {
    frameBuffer.begin();
    renderScene();
    frameBuffer.end();
    Gdx.gl.glDisable(GL20.GL_CULL_FACE);
    Gdx.gl.glDisable(GL20.GL_DEPTH_TEST);
    Gdx.gl.glDisable(GL20.GL_BLEND);
    bloomShader.begin();
    frameBuffer.getColorBufferTexture().bind(0);
    bloomShader.setUniformi("String_Node_Str",0);
    bloomShader.setUniformf("String_Node_Str",Helper.map((MathUtils.sin(startTime * 3f) * 0.5f + (changeLevelEffect * 4f)) + 0.5f,0,1,0.67f,0.75f));
    frameBufferVert.begin();
    bloomShader.setUniformf("String_Node_Str",Resources.getInstance().m_fTexelOffset);
    bloomShader.setUniformf("String_Node_Str",0.0f);
    quadModel.render(bloomShader,GL20.GL_TRIANGLE_STRIP);
    frameBufferVert.end();
    frameBufferVert.getColorBufferTexture().bind(0);
    frameBuffer.begin();
    bloomShader.setUniformf("String_Node_Str",0.0f);
    bloomShader.setUniformf("String_Node_Str",Resources.getInstance().m_fTexelOffset);
    quadModel.render(bloomShader,GL20.GL_TRIANGLE_STRIP);
    frameBuffer.end();
    frameBuffer.getColorBufferTexture().bind(0);
    frameBufferVert.begin();
    bloomShader.setUniformf("String_Node_Str",Resources.getInstance().m_fTexelOffset / 2);
    bloomShader.setUniformf("String_Node_Str",Resources.getInstance().m_fTexelOffset / 2);
    quadModel.render(bloomShader,GL20.GL_TRIANGLE_STRIP);
    frameBufferVert.end();
    bloomShader.end();
    batch.setBlendFunction(GL20.GL_ONE,GL20.GL_ONE);
    batch.getProjectionMatrix().setToOrtho2D(0,0,Resources.getInstance().m_i32TexSize,Resources.getInstance().m_i32TexSize);
    batch.begin();
    batch.draw(frameBufferVert.getColorBufferTexture(),0,0);
    batch.end();
    batch.getProjectionMatrix().setToOrtho2D(0,0,800,480);
    if (Gdx.graphics.getBufferFormat().coverageSampling) {
      Gdx.gl.glClear(GL20.GL_COVERAGE_BUFFER_BIT_NV);
      Gdx.graphics.getGL20().glColorMask(false,false,false,false);
      renderScene();
      Gdx.graphics.getGL20().glColorMask(true,true,true,true);
      Gdx.gl.glDisable(GL20.GL_CULL_FACE);
      Gdx.gl.glDisable(GL20.GL_DEPTH_TEST);
      Gdx.gl.glDisable(GL20.GL_BLEND);
    }
  }
 else {
    Gdx.gl.glDisable(GL20.GL_CULL_FACE);
    Gdx.gl.glDisable(GL20.GL_DEPTH_TEST);
    Gdx.gl.glDisable(GL20.GL_BLEND);
  }
  fontbatch.getProjectionMatrix().setToOrtho2D(0,0,800,480);
  fontbatch.begin();
  font.draw(fontbatch,"String_Node_Str" + Resources.getInstance().currentlevel,620,80);
  Resources.getInstance().time+=delta;
  Resources.getInstance().timeAttackTime-=delta;
  if (mode == 0) {
    seconds=(int)Resources.getInstance().time % 60;
    minutes=(int)Resources.getInstance().time / 60;
  }
 else   if (mode == 1) {
    seconds=(int)Resources.getInstance().timeAttackTime % 60;
    minutes=(int)Resources.getInstance().timeAttackTime / 60;
  }
  if (seconds > 9 && minutes > 9)   font.draw(fontbatch,"String_Node_Str" + minutes + "String_Node_Str"+ seconds,620,60);
 else   if (seconds > 9 && minutes < 10)   font.draw(fontbatch,"String_Node_Str" + minutes + "String_Node_Str"+ seconds,620,60);
 else   if (seconds < 10 && minutes > 9)   font.draw(fontbatch,"String_Node_Str" + minutes + "String_Node_Str"+ seconds,620,60);
 else   font.draw(fontbatch,"String_Node_Str" + minutes + "String_Node_Str"+ seconds,620,60);
  fontbatch.end();
  if (!finished && fade > 0) {
    fade=Math.max(fade - (delta * 2.f),0);
    fadeBatch.begin();
    blackFade.setColor(blackFade.getColor().r,blackFade.getColor().g,blackFade.getColor().b,fade);
    blackFade.draw(fadeBatch);
    fadeBatch.end();
  }
  if (finished) {
    fade=Math.min(fade + (delta * 2.f),1);
    fadeBatch.begin();
    blackFade.setColor(blackFade.getColor().r,blackFade.getColor().g,blackFade.getColor().b,fade);
    blackFade.draw(fadeBatch);
    fadeBatch.end();
    if (fade >= 1) {
      game.setScreen(new MainMenuScreen(game));
    }
  }
  if (!changeLevel && changeLevelEffect > 0) {
    changeLevelEffect=Math.max(changeLevelEffect - (delta * 15.f),0);
  }
  if (changeLevel) {
    changeLevelEffect=Math.min(changeLevelEffect + (delta * 15.f),5);
    if (!Resources.getInstance().debugMode) {
      if (mode == 1) {
        fontbatch.begin();
        timeAttackFont.draw(fontbatch,"String_Node_Str",740,40 - changeLevelEffect * 4);
        timeAttackFont.setColor(1,1,1,1 / changeLevelEffect);
        fontbatch.end();
      }
    }
    if (changeLevelEffect >= 5) {
      nextLevel();
    }
  }
  if (Resources.getInstance().timeAttackTime <= 0.5 && mode == 1) {
    finished=true;
    HighScoreManager.getInstance().newTimeAttackHighScore(0,Resources.getInstance().levelcount);
  }
}