I ported Immersive College of winterhold and I am having a slight bug that I cannot seem to correct for the life of me. I unpacked the BSA, separated head files, optimized the nifs, repacked the BSA, ran it through CK to ensure file format=form 44. Depending on the camera angle certain floor tiles on the mezzanine appear/disappear. I have noticed this issue in both hall of the elements and the arcaneum. I have linked two images below. I have pinpointed the files being affected I am just unsure of how to remedy the problem as I am kind of a noob in CK/Nifskope. The nif being affected is cwielementsmezzanine.nif The DDS it is supposed to be drawing is winterholdfloor02.dds https://imgur.com/HkD2agq https://imgur.com/wlC9J8h If I keep the old non optimized nifs I do not get this issue. I would still like to know how toresolve it with optimized nifs but would keeping the old nifs create any in game issues?