Thank you for reply me, i took 4k highresolution even less i tried … i don’t think it’s too high , but it dosn’t give me this error only when i take highresolution screenshot , when i move in viewport and i have another program in background , also when i bring in my content browser high resolution texture . It seems strange to me . I ve installed DLSS for UE5 now and i will see if it change something. i will also read more about the limit that lumen has now in doc maybe i am doing something wrong.