Home/Wiki Errors/AI Video
AI Video / Consistency

AI video character consistency failure

The subject changes across frames because the prompt lacks stable identity anchors or reference handling.

Error text / 报错原文

  • character consistency failure
  • identity drift
  • face changes between frames

What it means

The subject changes across frames because the prompt lacks stable identity anchors or reference handling.

Most common causes

  • No reference image
  • Too many descriptors
  • Long shot duration
  • Changing lighting or wardrobe

Fastest fix

  • Reproduce the smallest failing case.
  • Check environment, platform, and production settings.
  • Use the related local tool to classify the issue.
  • Fix the highest-risk security or data issue first.

Safe fix

  • Keep secrets out of client code and logs.
  • Prefer least privilege and explicit allowlists.
  • Add a regression test or checklist before retrying.
  • Document the working production configuration.

What not to do

  • Do not disable security controls as a permanent fix.
  • Do not paste secrets into public issue trackers or AI chats.
  • Do not trust preview success as production readiness.

Diagnostic commands

nvidia-smi
python -c "import torch; print(torch.cuda.is_available())"
python --version

Related tools

Related errors

Sources