Spine 换皮肤后约束失效，先核对成员关系

把目标骨骼、受约束骨骼与约束放进同一张皮肤矩阵。

Minimal reproduction

官方资料 Use a project copy, change one variable at a time, and save timing, parameters and output.

Three controls

Run a baseline, reproduce the operation, then restore one state setting at a time. Trace loading and update order when the result depends on transitions.

Handoff

Related guide Review compatible assets in Spine 工作台, then validate the final state in the target project.