voldyboggarts

Guys, i want to ask you about my problem with SC4 RH.. Why does this beach's texture look like this? The sand texture is gone and instead, there are brown tiles (paving) in the place where sands texture should be. I need your help about this problem. I installed many texture modd by the way. I've tried removing the texture one by one to see if any conflicts happed, but nothing change. Thank you so much..