Hi, I have checked your Spine project and the mesh attachment has weights for only lian and lian6 bones and these bones are not child bones of the acc_fl bone, so the mesh is not affected by the acc_fl bone's transform.
你好，我检查了你的脊柱工程，网格附件中只有lian和lian6骨头的权重，这些骨头不是acc_fl骨头的子骨，所以网格不受acc_fl骨头的变换影响。
To solve this, make lian and lian6 bones child bones of acc_fl bone or bind the acc_fl bone to the mesh and add a weight for it.
为了解决这个问题，让lian和lian6骨骼成为acc_fl骨骼的子骨骼，或者将acc_fl骨骼绑定到网格上并为其添加权重。
