Well, I learned this one the hard way.
So I'm messing about in Spark 2, within my DAW of choice, Reaper. To save on CPU so I can start adding in instruments and other effects, I decided to just "render out" the patterns into the DAW on a separate track. So I did so, using the drag and drop method from the patterns page. Worked like a charm. Rearranged my drum patterns into my song. All was good.
After I'd closed Reaper, then re-opened it to continue working on the track, I got notified that the audio files of my drums were missing. Upon investigating, I discovered that Spark had saved them to a temp folder within my User directory, and subsequently deleted the files when I'd closed Reaper.
Like ... WTF!! Seriously?
.. How is that even remotely a reasonable way to handle that function?
I found the "workaround" pretty quick tho. Fortunately, I still had the original Spark track in my DAW; just disabled. So I re-enabled it and did the drag and drop of .wav to the DAW again. THEN I went ahead and glued those "samples" in place, so Reaper would save them in an
appropriate place.
Guys, you GOTTA fix this behavior. Unacceptable.
Either save it in the library, or ask the user where to save it. .. saving it as a temp file that gets erased is ridiculous.
