Talos docs

spring-chain-bad

Since 0.7

a chain is not a path down the skeleton: its tip is not below its root, a joints bone is not the child of the one before, or a bone is in two chains

Plain text
Severitywarning

Meaning

a chain is not a path down the skeleton: its tip is not below its root, a joints bone is not the child of the one before, or a bone is in two chains

Fix

list the bones root first, each the child of the previous; keep each bone in one chain