Hi,
I've just followed the STEP guide and everything is working great so far except for some grasses seemingly missing their textures or just looking very purple at a distance. It also seems to happen with some leaves on the ground near Riften. At first glance it doesn't seem to be related to LODs at all because 'tll' doesn't change it nor does DynDOLOD give me any errors about missing textures. Toggling ENB settings doesn't do anything either. I've tried reinstalling Cathedral Landscapes and fiddling with some settings in BethINI but to no avail.
Modlist: https://pastebin.com/ZjktgY2x