OK Jeff,
Thanks, just to clarify what I see happening, I get the error when I try to save the Song as MP3.
It does create a .mp3 file, but it's 0 bytes long.

If I save the Song as a WAV file, no such problem, it works fine.


Jerry
2019 BiaB Megapack (634), RB 2019 (Build 4)
Reaper 5.983 x64, Audient id14 USB interface, Voicemeeter Potato 3.0.0.8, Nektar LX49+, Roland E20
i7-6700K Skylake desktop, 64bit Win10 Pro(1903), 32GB ram, 512GB system SSD + 2TB data SSD