Troubleshooting & FAQ

Common issues, solutions, and frequently asked questions.

Installation & Startup
Loki Studio won't start or crashes on launch

Possible causes and solutions:

  1. Missing Visual C++ Redistributable: Download and install the latest Visual C++ Redistributable from Microsoft.
  2. Antivirus blocking: Some antivirus software may flag Loki Studio. Add an exception for the installation folder.
  3. Corrupted installation: Uninstall completely and reinstall from the official download.
  4. Conflicting software: Close other video editing software before starting.
Error: "MSVCP140.dll is missing"

This error indicates missing Microsoft Visual C++ runtime files.

Solution: Download and install the Visual C++ Redistributable for Visual Studio 2015-2022. Restart your computer after installation.

Application is slow or unresponsive

Try these optimizations:

  • Close unnecessary browser tabs and applications
  • Ensure you have at least 8GB RAM available
  • Check that your GPU drivers are up to date
  • Move video files to an SSD if possible
  • Clear the cache (Timeline Editor > Clear Cache)
Transcription Issues
Transcription fails with CUDA out of memory

Your GPU doesn't have enough VRAM for the selected Whisper model.

Solutions:

  • Use a smaller model (small or medium instead of large)
  • Change compute type to int8 or int8_float16 in Settings
  • Close other GPU-intensive applications
  • Switch to CPU mode (slower but works with any hardware)
Transcription is extremely slow

Check these settings:

  • Ensure Device is set to "auto" or "cuda" (not "cpu")
  • Update NVIDIA GPU drivers to the latest version
  • Use large-v3-turbo instead of large-v3 (nearly same quality, much faster)
  • Reduce beam size from 10 to 5
  • Make sure CUDA toolkit is properly installed
Poor transcription quality or wrong words

Improve accuracy with:

  • Use a larger model (large-v3-turbo or large-v3)
  • Increase beam size to 10
  • Enable Voice Activity Detection (Silero mode)
  • Set the correct source language explicitly
  • Use the Initial Prompt field to provide context (game names, character names, technical terms)
  • Ensure good audio quality in source video
Transcription detects the wrong language

Whisper auto-detects language but can make mistakes, especially with accents or multilingual content.

Solution: Explicitly set the Source Language in transcription settings instead of using "auto".

AI & Metadata Issues
Metadata generation fails or times out

Check your AI configuration:

  • Grimnir: Ensure a model is downloaded and loaded (status shows "Ready")
  • Ollama: Verify Ollama is running and the model is installed
  • Cloud providers: Check API key is valid and has available credits
  • Reduce Max Tokens in Advanced settings if generation is slow
  • Increase Timeout setting if your hardware is slower
Generated metadata quality is poor

Improve output quality:

  • Ensure video was transcribed with a quality model (large-v3-turbo)
  • Try a different AI personality that matches your content
  • Use a more capable LLM model (qwen3:8b recommended)
  • Increase Max Tokens for more detailed output
  • Use "Improve Title" or "Make Better" to regenerate
Ollama connection refused or not working

Troubleshooting steps:

  1. Check Ollama is running (look for icon in system tray)
  2. Restart Ollama service
  3. Verify URL is correct: http://localhost:11434
  4. Ensure a model is installed: ollama list in terminal
  5. Try reinstalling Ollama
Grimnir model download fails

Solutions:

  • Check your internet connection
  • Ensure you have enough disk space (models can be 4-20GB)
  • Try clicking the download button again to resume
  • Check if antivirus is blocking the download
  • Try a smaller model first to test connectivity
YouTube Upload Issues
OAuth error or "Access Denied" when adding channel

Common causes:

  • Client ID or Client Secret is incorrect - double-check for typos
  • YouTube Data API v3 is not enabled in Google Cloud Console
  • You're not added as a test user in OAuth consent screen
  • OAuth consent screen is not configured properly

See the OAuth Setup Guide for complete instructions.

Upload fails or times out

Solutions:

  • Check your internet connection stability
  • Reduce chunk size in Power User Settings for unstable connections
  • Increase upload timeout (default is 60 minutes)
  • Very large files (>10GB) may need multiple attempts
  • Try uploading during off-peak hours
YouTube quota exceeded error

YouTube has daily API quotas that reset at midnight Pacific time.

Solutions:

  • Wait 24 hours for quota to reset
  • Request a quota increase in Google Cloud Console
  • Upload fewer videos per day (typically 6-10 max)
Thumbnail not uploading or not appearing

Check these requirements:

  • Thumbnail file exists and is not corrupted
  • File is under 2MB in size
  • Format is JPG or PNG
  • Your YouTube channel is verified (required for custom thumbnails)
  • Resolution is 1280x720 pixels
Timeline & Video Issues
Video won't load or play in Timeline Editor

Troubleshooting:

  • Verify the video file is not corrupted (try playing in VLC)
  • Check file format is supported (MP4, MKV, MOV, AVI)
  • Update GStreamer (included with Loki Studio)
  • Try converting the video with a tool like HandBrake
  • Check if the file path contains special characters
Audio tracks not detected or wrong

Solutions:

  • Some container formats may not properly label audio tracks
  • Re-encode the video with clearly labeled audio tracks
  • Use an MKV container which has better audio track support
  • Check your recording software's audio track settings
Render/export fails or produces corrupted output

Try these fixes:

  • Ensure sufficient disk space for output file
  • Check output path doesn't contain special characters
  • Clear cache before rendering
  • Try a different output directory
  • Reduce video complexity (fewer cuts)
Frequently Asked Questions
Is Loki Studio free?

Yes! Loki Studio has a free tier with all core features. The Pro version adds Grimnir (built-in LLM), cloud AI support, additional personalities, and batch export. See Pricing for details.

What are the system requirements?

Minimum:

  • Windows 10/11 (64-bit)
  • 8GB RAM
  • 10GB free disk space
  • Any modern CPU

Recommended:

  • 16GB+ RAM
  • NVIDIA GPU with 6GB+ VRAM (for fast transcription)
  • SSD for video files
  • 50GB+ free disk space (for AI models)
Does Loki Studio work on Mac or Linux?

Currently, Loki Studio is Windows-only. Mac and Linux versions may be considered for future releases based on demand.

Where are my files and settings stored?

Default locations:

  • AI Models: C:\Users\[username]\AppData\Local\LokiStudio
  • Settings: C:\Users\[username]\AppData\Local\LokiStudio\config
  • Logs: C:\Users\[username]\AppData\Local\LokiStudio\logs
  • Videos: Your configured Base Video Directory
Can I use Loki Studio commercially?

Yes! You can use Loki Studio to create content for your YouTube channel, client work, or any commercial purpose. There are no restrictions on how you use the videos you create.

Do I need an internet connection?

Most features work offline after initial setup:

  • Offline: Transcription, Timeline Editor, Thumbnails, Grimnir metadata
  • Online required: YouTube upload, cloud AI providers (OpenAI/Claude), model downloads
How do I update Loki Studio?

Loki Studio checks for updates automatically on startup. When an update is available, you'll be prompted to download and install it. Your settings and profiles are preserved during updates.

Can I transfer my license to another computer?

Yes. Pro licenses can be deactivated on one computer and activated on another. Use the Manage License option in the About tab to deactivate, then enter your license key on the new computer.

Why the Norse mythology theme?

Loki Studio's creator is passionate about Norse mythology and wanted to create a memorable, cohesive experience. Each module is named after a Norse figure that represents its function:

  • Muninn (Memory) - Transcription
  • Kvasir (Wisdom) - Metadata
  • Idunn (Beauty) - Thumbnails
  • Hermod (Messenger) - Upload
  • Bragi (Poetry/Music) - Audio analysis

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