In response to post #68786826. #68791821, #68839296 are all replies on the same post. Oldrim mods are (usually) not compatible due to SE using a different Creation Kit, and the forms differing (form 43 vs 44). It's generally quite simple to convert the majority of mods to SE though - most times all it takes is to just resave it in the new CK, or I think even SSE Edit has a convert feature IIRC. Textures, meshes and animations are even easier to convert since you don't need to use the CK to do so and there are simple tools for them (That being said, it's my understanding that making SE mods Oldrim compatible is much more difficult.)