which version of blender are you using?
how many bones do you have total?
are you rendering with shaders or dbpro native?
be sure to have both the model and the skeleton selected when exporting, and use 'export selected objects only'
Be sure to apply (ctrl a) location and scale on the object and the armature
be sure to apply modifiers when exporting
be sure to export skin weights, armature bones, and animations (exact options depend on version)
you do not need to 'include frame rate', 'export actions', or 'rest position'
the following is specific to using the models with Advanced Lighting, but is probably a good practice for dbpro in general:
each vertex should be weighted to no more than 4 bones
every vertex should be weighted to at least one bone, every bone should have at least one vertex
use no more than 60 bones
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