Hi Everyone… I hope i have proper shadow map but I have unknown shadow error. When i did “Build Light” first time Everything fine but after few “Build Light” My shadow appearing dark and everything collapse. here with i attache the picture of my Training file… [71350-error.jpg]

Hi IRSHATH, You’ll want to setup a Lightmap UV for your static mesh. You can read more about this error message and setting up a Lightmap UV on this Wiki Lighting Troubleshooting guide here . Thank you! Tim