CTD's when spawning Converted Follower

[ChainedBlitz]

So I recently made the switch to SSE after I accidentally ruined my LE Mod Manager, and I've been converting my favorite LE followers to SSE. It's been working alright, except for these two follower mods, one of which is YuiH's Leila Follower, which keep CTD'ing when I spawn them with player.placeatme.

 

The steps I use to convert are as follows:

 

1. I ran all the meshes through SSE Nif Optimizer. Ran the headmesh separately.

2. Ran all the textures through Cathedral Assets Optimizer

3. Opened the .esp in CK and saved. Deleted the generated facetints and facegeoms.

4. If the follower is UNP Based, I replace all meshes and textures with CBBE compatible meshes and textures.

5. I delete that weird line in the headmesh BSShading in nifskope.

 

When I spawn them with player.placeatme, the follower is loaded, no gray or purple face bug or T-pose, and is able to walk, before the game crashes. Their master files are just Skyrim.esm, Update.esm, and Dawnguard.esm. I even tried replacing the meshes with just the normal CBBE because I thought it would just be a skeleton issue, but it still crashes. Please help.