Kev,
I can confirm that I'm having the same problem, noticed this yesterday. In 64-bit version, I can't even read the error message, it just very quickly flashes, and no processing of the file. Switch to 32-bit version (this is using the 623 build), it processes the exact same file with no problem.

I haven't used ACW very much, still learning, so I'm not sure if the same situation occurred with earlier versions.


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