Even experienced creators run into frustrating problems with AI video generation. Flickering, morphing objects, distorted faces, and jittery camera movements can ruin an otherwise great generation. This guide covers the 10 most common problems and exactly how to fix each one.

Mistake #1: Flickering Video

⚠️ Problem: The video flickers or has inconsistent lighting frame-to-frame.

Cause: The AI is having trouble maintaining lighting consistency across frames, often caused by too much motion or conflicting lighting instructions.

Fix: Add "stable lighting, consistent illumination, no flickering, static light source" to your prompt. Reduce the motion intensity in your prompt. Use higher reference strength to anchor to your original image.

Add to prompt: "stable consistent lighting, no flickering, steady illumination"

Mistake #2: Distorted Faces

⚠️ Problem: Character faces become distorted, morphed, or develop extra features.

Cause: The AI's motion generation interfering with delicate facial features, especially with higher motion settings.

Fix: Add "photorealistic, consistent facial features, no distortion, natural proportions, high facial fidelity" to your prompt. Reduce motion intensity. Keep reference strength at 80%+. For SVD, keep motion bucket under 60.

Add: "consistent facial features, no morphing, photorealistic face, natural expressions"
Negative: "distorted face, morphed features, extra eyes, disfigured"

Mistake #3: Objects Morphing or Disappearing

⚠️ Problem: Objects in the scene change shape, merge, or vanish during the video.

Cause: The AI is struggling to maintain object permanence across frames, especially with complex scenes or excessive motion.

Fix: Simplify your input image. Reduce background complexity. Add "maintain object shapes, no morphing, stable scene elements" to your prompt. Increase reference strength.

Mistake #4: Wrong Camera Movement

⚠️ Problem: Camera doesn't move as expected, moves in wrong direction, or shakes.

Cause: Ambiguous camera direction or conflicting instructions in the prompt.

Fix: Always put camera movement first in your prompt. Use precise, unambiguous language. Don't mix camera movements. For Runway, use their specific "Camera:" syntax.

✅ Good: "Slow push in from front, the flowers gently swaying..."
❌ Bad: "flowers swaying with a zoom happening while the camera also pans..."

Mistake #5: Unnatural/Robotic Motion

⚠️ Problem: Motion looks mechanical, jerky, or physically impossible.

Cause: Vague motion description, or requesting motion the AI hasn't learned well.

Fix: Add physics-grounding keywords: "natural physics, realistic motion, organic movement, physically accurate." For human motion, describe the specific muscles/joints: "the arm swings naturally from the shoulder."

Mistake #6: Low Video Quality/Blurriness

⚠️ Problem: Output is blurry, noisy, or lower quality than expected.

Cause: Low-quality input image, missing quality keywords, or using a free/low-credit tier.

Fix: Start with a minimum 1024x768 input image. Add "sharp focus, high resolution, 4K quality, ultra-detailed, photorealistic" to every prompt. Use the highest quality mode on your chosen platform.

Mistake #7: Scene Changes Completely

⚠️ Problem: The output looks nothing like your input image.

Cause: Image reference strength too low, or your prompt describes a completely different scene.

Fix: Increase reference strength to 85-95%. Make sure your prompt describes motion within the existing scene, not a new scene. Remove any descriptive words about the subject that conflict with your image.

Mistake #8: Text in Image Gets Distorted

⚠️ Problem: Text, logos, or text-like elements in the image become garbled or unreadable.

Cause: AI video models have poor text permanence — they weren't trained to preserve text across frames.

Fix: Remove text from input images before generating. Add text back afterward in a video editor. This is unavoidable with current AI video technology — always add text in post-production.

Mistake #9: Too Much or Too Little Motion

⚠️ Problem: Everything moves way too much (chaos) or barely anything moves (frozen).

Cause: Motion intensity not calibrated to the scene type.

Fix: For too much motion: add "gentle, subtle, minimal motion, slight movement only." For too little: add "significant motion, dynamic movement, clearly animated." For SVD, adjust motion bucket (40 = subtle, 200 = extreme).

Mistake #10: Video Ends Abruptly or Loops Badly

⚠️ Problem: The video has an abrupt cut at the end or creates a jarring loop.

Cause: The motion direction moves too far from the starting position to loop smoothly.

Fix: For loops, request "seamless loop, cyclical motion, returns to starting position." Use gentle, oscillating motions (back-and-forth swaying) rather than directional movement (always going left). For non-loops, plan to fade out in your video editor.

📚 Pro Tip: Keep a log of prompts that failed and note why. Over time, you'll develop intuition for what works on each platform. Most experienced creators have a bank of "reliable" prompts they return to when they need consistent results.