Hey, as Sebastian mentioned you need to use Dots.Animation to create a working setup for SkinnedMeshRenderers in the current state of things. The Dots.Animation Samples are a good starting point to understand what is required to get things working.
In particular to get SkinnedMeshRenderers to convert properly you need to setup a SkinMesh component on the same GameObject. Furthermore, the material used by the SkinnedMeshRenderer needs to be setup for skinning. This requires a ShaderGraph. The graph used in the samples can be found in Assets/Shaders. Lastly, you need to check “enable GPU instancing” on the material itself. Olivier provides some illustrations on this in his first reply in this thread .
My apologies for the involved setup. We are actively working on improving this.