Talos docs

animator-retarget-suspect

Since 0.7

the retarget map is legal but probably wrong: its left and right look swapped (by the target bones' names, or the left thigh sits on the character's right for a rig facing +Z), or it leaves out the chest, neck, head or shoulders; printed once per asset

Plain text
Severitywarning

Meaning

the retarget map is legal but probably wrong: its left and right look swapped (by the target bones' names, or the left thigh sits on the character's right for a rig facing +Z), or it leaves out the chest, neck, head or shoulders; printed once per asset

Fix

swap the map's Left and Right entries, or map the bones it lists if the rig has them