Exporting with a transparent background

Ill start by saying CURRENTLY there is nothing on the video track. I have an audio track playing a song and I have subtitles I generated with whisper. Ive tried all 4 alpha renders and Ive tried changing the script but once I play the video in obsstudio I get a black screen with subtitles and music. Im at a loss what to try next based off my searches.

Can you please share details like,
Kdenlive version:
OS (Operating System):
[If on Linux]: AppImage, Flatpak etc.,

These details would help community members to solve your issue faster.

I think, export as *.mov with alpha does the trick. Check in obsstudio with changing the background to white to see if the *mov file has alpha.