I tried what you said.
- I launched the full version.
- Quit and re-launch the Lite app.
- The Transfer Files button appeared. I pressed it and it ran for a while, then came up with a window that talked about AirDrop.
- I quit and re-launched the full app.
So far the (.wav) file has not appeared in the full app, even after I quit and re-launched the full app.
What am I not doing?