@PabloMK7 I may have figured out why the shadow wasn't appearing on Kalimary Icy Desert. In the BCMDL of the original file there is a texture called "n64kd_shadowALL" which is missing the in the BCMDL of Icy Desert [See attachment for screenshot showing the files]. You can check and see if this is the problem (not entirely sure though, I have little experience with course editing).