Hi there. We are working on a 2D sprite-based game (currently in our final development weeks! woohoo!!) and we recently upgraded to Unity 5. The port is OK so far and we barely encountered any issues. However, since we upgraded to Unity 5, after I create a new scene, even after removing the original Camera and Light objetcs that are placed there by default, I keep getting these error messages everytime I create or modify a sprite that is marked as full static ('Everything'): · Mesh doesn't have normals. Please create some for Enlighten. · Failed opening GI file: '[whatever].ppg'. How can I solve those? I have no lights in any scene, but I'm worried about those warnings (and I can't really find anything concerning them). Maybe we don't need some of the statics that are related to lighting? Could those messages break the game or affect performance, or they only appear in the Editor? Thanks for your time. P.S.: In Window > Lighting I can disable the Precomputed Realtime GI and Baked GI flags, is it related to this problem?