Thx for the response, i read the documentation and after that found this thread:
From what i get it’s pretty much the same problem i have. So if i put a value of 0 for the Dynamic Shadow Distance then the directional light would cast only static shadows and they will work correctly, am I right ? I don’t have a problem with the shadows as they are - dynamic but i would like to optimise my light building time. I am still not sure what I should do about the BSP shadows, i played with the Light Res and the materials applied but i don’t think it’s from that. Anyway thx again for the help .