Groucho2004, here are the logs:
https://pastebin.com/trPLFs2w (primary setup with avs2.6),
https://pastebin.com/TjdMquUr (secondary setup with avs+). For some reason it complains about the absence of fft3w lib in the latter, even though mvtools dct modes work fine.
zorr, thanks for the memory suggestion and the time fix, I'll try to run it overnight now with those. I wonder if it would be possible to use the 3Gb or 4Gb limits reliably since I'm on 64bit OS. SEt
says it requires the patching of the runner app (avsr in our case) for support, I assume it applies regardless of MT usage, does avsr have that?