Detection Issues
| Problem | Likely Cause | Solution |
|---|---|---|
| Detect Occlusion greyed out | Body/clothing meshes not assigned, or Paint Mode active | Assign Body Skeletal Mesh and at least one Clothing Mesh. Exit Paint Mode. |
| Nothing is hidden after detection | Meshes don't overlap, or Proximity Threshold too low | Check both meshes share the same origin and skeleton. Increase Clothing Proximity Threshold. |
| Too much is hidden — skin shows through clothing | Threshold too low or cone angle too wide | Raise Occlusion Threshold (e.g. 0.85), lower Cone Half Angle, or increase Edge Erosion Rings. |
| Floating visible patches inside clothing | Island removal not catching all patches | Increase Max Visible Island Size and enable Close Enclosed Regions. |
| Noisy or jagged boundary | Not enough post-processing | Increase Smoothing Iterations (2–5), Dilation Rings (1–2), and Edge Erosion Rings (1–2). |
Runtime & Blueprint Issues
| Problem | Likely Cause | Solution |
|---|---|---|
| Clothing doesn't match body pose | Different skeleton | All clothing meshes must use the same skeleton as the body. |
| Blueprint node returns false / no swap | Mismatched clothing meshes | Use the exact same mesh assets in Blueprint as used during detection. Matching is order-independent. |
| Save button greyed out | Output Path empty, no detection/paint data, or Paint Mode active | Fill in Output Path. Run detection or paint triangles. Exit Paint Mode before saving. |
Editor Issues
| Problem | Solution |
|---|---|
| Animation preview won't play | Assign an AnimSequence in Preview Animation settings. Must use the same skeleton as the body mesh. |
| Want to hide geometry without clothing | Assign body mesh only, enter Paint Occlusion, paint the triangles you want hidden, then Save. |
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