This is why you might want to stay on 1.5.97 (the "pre-AE" build). These mods were never updated past runtime 1.5.97 because their authors quit modding or the source code was lost.
And the GrayMen were the ones who fell out of the cracks. The NPCs she had deleted via console. The quest actors that failed to spawn. The orphaned scripts from mods she ripped out without cleaning. All the garbage of two years of obsessive modding—it had coalesced. In the absence of a proper world reset, the engine had started reusing FormIDs. But it didn't know how to build skin anymore. Or faces. Or souls. skyrim+skse+16640+2021