Spine Constraint Fails After a Skin Swap? Check Membership

Map the target, constrained bones and constraint to skin membership.

Minimal reproduction

official reference 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 Workbench, then validate the final state in the target project.