Created attachment 129919 [details]
Screenshots of KdEnLive

SUMMARY
If I add metadata and while rendering tick more option and then export metadata then the video does not render and immediately gives a message Rendering Finished in 00:00:00

STEPS TO REPRODUCE
1. Go to Project >>> Project Settings
2. Open Metadata tab
3. Add metadata with additional lines to add around 8 metadata lines
4. Click Ok and Save project
5. Click render button
6. On Rendering screen in Render Project tab select More options
7. When additional screen opens on the right side select option of Export metadata
8. Click Render to File 
9. The file rendering does not start and you see a message Rendering Finished in 00:00:00
10. If you check the folder location - no file is rendered

OBSERVED RESULT
No file rendered with metadata

EXPECTED RESULT
File should be rendered with meradata

SOFTWARE/OS VERSIONS
Windows: 10 Home
macOS: NA
Linux/KDE Plasma: NA 
(available in About System)
KDE Plasma Version: NA
KDE Frameworks Version: NA
Qt Version: 

ADDITIONAL INFORMATION