SSE Can't Load Converted ESL->ESM in Creation Kit

[Kifyi]

I'm trying to convert a CC .esl to a .esm in an effort to port the CC Wild Horses over to Skyrim VR. Problem is, the CK crashes whenever I try to load ccbgsse034-mntuni.esm. I have tried converting it first by renaming, and then with SSE edit. Neither way worked for getting it into the creation kit.

 

Any tips?