FLstudio on Parallels.
Anyway, now that I've got FL on Windows, bootcamp it's time to solve this.
The external interface/soundcard is a Tascam - US122MK2. No idea if it's compatible with Windows, I'm not even technical ...
FL still stores the renders to data/patches/rendered. There was similar behaviour when edison stored to sliced beats before the introduction of the custom data folder.
When exporting audio from the file menu, FL gives you the option of where to save ...
FL, enable a feature that renders either a quick snippet from the start of the playlist, the full playlist contents (or between song start/end markers, for those who use them), or some other sonically identifying component of the .flp, then ...