Why Does Wan 3.0 Change Faces or Products?
Wan 3.0 may change faces or products when references are weak, prompts conflict, or motion is too aggressive.
Overview
Wan 3.0 may change faces or products when the reference signal is weak or the prompt asks for changes that conflict with identity preservation. Faces can drift under extreme angles, fast motion, expression changes, or lighting shifts. Products can drift when the image is blurry or the prompt effectively redesigns the item.
Fix the input before retrying. Use a clearer face or product reference, keep lighting and wardrobe stable, and describe what must remain unchanged. If the product label or face shape is critical, avoid dramatic transformations until a simpler baseline passes.
Review against the source asset, not just the prompt. The video may look coherent while still changing a logo, color, face, package geometry, or product scale. That is a failure for commerce, ads, and character-driven storytelling.
On WaveSpeedAI, keep the rejected prediction with a specific reason. “Face changed during turn” or “logo distorted after camera push” is useful; “bad result” is not. Clear labels help the team decide whether to adjust prompt, route, reference, or model. Identity and product failures should block approval even when the clip looks polished, especially for ads.
Source: WaveSpeedAI Wan 3.0 API collection; Alibaba Cloud Wan3.0 API reference. Source check: 2026-08-29.
