The lighting in the scene is order dependent if the blend mode changes to Alpha Blend. In the original Lost Crypt project, Light Group - Entrance 1 -> Light Entrance and Light Group - Entrance 2 -> Light Entrance are set to blend additively. As the blend mode is additive, the order doesn't matter as the results are added together. However, this is no longer true if set to Alpha Blend. The Light Order setting on the Light2D can be used to resolve the issue to ensure the draw order of the lights.