MAJORFailure Reference

ByteDance Seedance Color Drift — Pre-Generation Risk Reference

Technical Classification

Temporal Color Coherence Failure

Temporal Color Coherence Failure on Seedance shows up on clips longer than 4 seconds, scenes with shifting lighting, and any commercial work involving branded color. Seedance's diffusion model uses a soft temporal regularisation for color consistency rather than an explicit per-frame constraint, so on long clips a single surface can drift hue across the duration. The failure is non-linear so post-production color-grade cannot fully recover the original.

How to identify this failure

✕Single surface changing hue across clip length
✕White balance drifting warm or cool
✕Saturation pulsing across frames
✕Background and foreground colors drifting independently
✕Branded product colors shifting outside brand tolerance

Real generation examples

Prompt used

"Red sports car parked on coastal highway, sunset"

Failure observed @ 0:01

Car hue drifted from cherry red at 0:01 to orange-red by 0:05

Prompt used

"Branded teal product on white background, studio shot"

Failure observed @ 0:02

Product shifted from teal to seafoam across 4-second clip; brand unusable

Documentation strength

If you need to escalate

HIGH — Seedance support refunds color drift on documented commercial work. Submit Generation ID with paired screenshots showing the same surface in distinguishable hues.

AVA is a pre-purchase prevention tool, not a post-purchase recovery tool. Platforms generally do not guarantee credit refunds for output-quality failures; goodwill credits are at each platform's discretion. The strength rating reflects how well-formed your support ticket can be, not a promised outcome.

Prevention + documentation steps

01
Score your prompt before you generate
Run your prompt through AVA's pre-flight scoring against the Temporal Color Coherence Failure pattern. Green light = generate. Yellow/red = rewrite using the suggested fix before you commit credits.
02
Capture Generation ID + timestamp if it failed anyway
Find the Generation ID in the URL or share link. Note the exact time when the Temporal Color Coherence Failure first appears (e.g. "failure first visible at 1.2s"). Timestamped evidence is significantly stronger than a general complaint.
03
Use the correct technical term in your support ticket
Describe this failure as "Temporal Color Coherence Failure". This term maps to a recognised internal workflow in the support system and routes the ticket to the right team.
04
Submit via the correct support channel
Runway has no direct email intake. Pro+ plan: open the in-app AI Assistant (help widget bottom-right of app.runwayml.com), describe the failure with the technical term, attach evidence. Free/Standard plan: human support isn't available — your channel is Discord #community-help with @On Call - Moderators.

Frequently asked questions

Does Seedance refund credits for color drift?

Yes. Submit the Generation ID with two screenshots from the start and end of the clip showing the same surface in visibly different hues. Seedance support recognises temporal color drift as a known limitation on long clips.

Why does Seedance produce color drift?

Color consistency is maintained statistically via temporal regularisation rather than an explicit per-pixel constraint. On longer clips the regulariser fails to prevent slow hue drift, especially under shifting lighting or stylized rendering modes.

How do I prevent color drift on Seedance?

Keep clips ≤4 seconds when color accuracy matters. Use neutral, even lighting. Avoid branded products. Color-grade in post via DaVinci Resolve. AVA flags color-drift risk on long-clip prompts.

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