Cannot Import Child Sneakers

Hello,

I am trying to import sneakers I converted from adult to children but it gives me the error below. I appended the object from the original file, deleted all rigs, re-rigged for children and tried to import. I don't think there would be any data left from the adult blend but I clearly missed something. I would really appreciate the help.


Sims 4 Studio 1.3.2.2 (Apple Blossom)
S4Studio.Blender.BlenderException:
File "/Users/[UserName]/.local/share/S4Studio/Scripts/geomexporter.py", line 39, in <module>
save_geom(geom, o, body_type)
File "/Users/[UserName]/Library/Application Support/Blender/2.78/scripts/addons/s4studio/cas/blender.py", line 123, in save_geom
blend_index = vertex_group_map[mesh_object.vertex_groups[int(vertex.groups.group)].name]
IndexError: bpy_prop_collection[index]: index 15 out of range, size 6


at S4Studio.Blender.BlenderUtilities.RunBlender (System.String script, System.String blend, System.Boolean background, System.Boolean check_version) [0x00313] in <45b9e19443ba4be2b063d439867483a5>:0
at S4Studio.Blender.BlenderUtilities.ImportGeom (System.String custom_blend, System.String custom_geom, System.Int32 body_type, System.String cut) [0x00093] in <45b9e19443ba4be2b063d439867483a5>:0
at S4Studio.ViewModels.CAS.CASLODItem.ImportMesh (S4Studio.Blender.BlenderUtilities blender_util, System.String blender_path) [0x0012a] in <45b9e19443ba4be2b063d439867483a5>:0
at S4Studio.ViewModels.CAS.CASStandalone+<>c__DisplayClass71_0.<ExecuteImportMesh>b__0 () [0x00027] in <45b9e19443ba4be2b063d439867483a5>:0
at S4S.UI.Core.S4SWindow+<>c__DisplayClass11_0.<BeginLoading>b__1 () [0x00014] in <45b9e19443ba4be2b063d439867483a5>:0