1. Identify authored rig vs playback rig
General troubleshooting adviceNote whether you authored on R15, R6, or a custom rig. Playing custom-rig curves on a different hierarchy will look broken.
Expected: Authored and playback hierarchies match.
TroubleshootingRig and IK Compatibility Issues
Rig and IK Compatibility Issues
Diagnose mismatched rigs, IK/FK confusion, and animation retarget problems.
Quick answer
Animations are tied to a specific joint hierarchy. Confirm the runtime rig matches the authored rig (R15 vs custom), and treat IK as an authoring aid — baked keyframes still need a compatible Motor6D structure at playback.
Symptoms
- Limbs twist or collapse when playing animation
- IK handles ignore expected bones
- Animation from one rig looks broken on another
Step-by-step checks
2. Inspect Motor6D / bone naming
General troubleshooting adviceMissing or renamed joints prevent tracks from binding. Compare joint names between the animation and the character.
Expected: Required joints exist with expected names.
3. Separate IK authoring from runtime
General troubleshooting adviceIK/FK modes help posing. Runtime playback uses keyframed transforms. An IK issue while posing is not always a playback bug.
Expected: You know whether the problem is in the editor or at runtime.
4. Community IK reports stay unverified until reproduced
Community report — not confirmed for current versionForum threads about IK on custom rigs are useful leads, not automatic confirmation of a current Eclipse Animator defect.
Expected: You reproduce before documenting as a known bug.
Limitations
- Does not provide an automated rig diff tool in v1.
- IK behavior is version- and plugin-dependent.
Last verified: Not yet version-verified — treat as general guidance.
Related tools
Related guides
Sources
More topics: Eclipse Animator Not Showing in Plugins · Animation Not Playing in Roblox · Loop Animation Stutter or Pause