In addition to the poor UVs on the small eyes (?) of the skylamp mentioned in another of my reports, some of the weighting on the models is problematic. There are various seams that occur during animations which can be quite visible. One of the larger eyes/sacs/whatever has such a seam (in the first image), and the seams also occur along the center and back of the model (in the second image) on both sides. Lastly the smaller eyes appear to be affected too much by a bone and thus move into the rest of the model (in the third image).
During the fighter's guild quest in Helnim "Hunting Twilight" TR_m2_FG_Hartise_Twilight The winged twilight is seemingly bugged in a way im not sure whats broken. It can still damage me, but if I cast a spell the spell doesnt "go off" and blocks Guuljhka as if it was a physical obstacle. Additionally any attacks done with a weapon do no damage, beyond that it seems to clip thru the creature itself. I'm not an expert on mods or anything for morrowind but did attempt to kill the creature in console sethealth 0 and that also had no effect.