The "License Not Found" or "GT Title Designer Not Opening" error in vMix often stems from corrupted configuration files or licensing tier mismatches. Follow these troubleshooting steps to resolve the issue: 1. Reset Corrupted Configuration Files
folder and look for any temporary files related to registration (be careful not to delete your presets). Often, simply restarting the computer after clearing the C:\ProgramData\vMix (if it exists) will force a clean check. Final Thoughts In 90% of cases, simply re-entering your license key vmix gt title designer license not found