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   Warning: Multiple Blender mesh names in (detaillevel) all reduce to the same DTS
    Object name: (dtsobjectname)
     The exporter will use the original names for these meshes and any nodes
     generated from them.  This may result in duplicate or unneccesary nodes
     extra animation tracks, and inefficent mesh packing in the exported dts
     file.

     Changed dts object and node name for Blender mesh (meshname)
      from (oldname) to (newname).
     ...

This warning indicates that the naming convention for grouping Blender objects into "DTS Objects" across detail levels was not followed.

See:

• LOD - Levels of Detail