Okay this is what i did just to see if it was happening from the zip and close i re-ran both programs and loaded a new game, still the same with just zipping it myself using 7 zip but it seems the mesh is a lod mesh not being unloaded right so there is 2 meshes on top of each other.
base defined in: DynDOLOD.esm
base last changed by: DynDOLOD.esm
Ref defined in: DynDOLOD.esp
Ref last changed by: DynDOLOD.esp
Base form id: 1A0094F3
Ref form id D6063741
it is the model: dockstrent02_lod_0.nif [3]
then if i disable that i get this mesh under that
base defined in: SMIM-SE-Merged-ALL.esp
base last changed by: SMIM-SE-Merged-ALL.esp
Ref defined in: Skyrim.esm
Ref last changed by: SMIM-SE-Merged-ALL.esp
Base form id: 2300063C9
Ref form id 0009252B
and that is the model: dockstrent02uskp.nif [3]
Note: SMIM-SE-Merged-ALL.esp was not added to DynDOLOD esm or the esp so i do not know if i can get more info then that.
I got that info from in game using More Informative Console and seeing it was 2 meshes z-fighting.