You can't use Avisynth input and then filter with Vapoursynth (in Hybrid).
Code:
AVISource(“D:\Hybrid input\vinny band scene 1.avi”)
Killaudio
AssumeTFF
Tweak(sat=.82)
QTGMC(preset=“faster”)
Crop(8,0,-8,-12)
Addborders(0,6,0,6)
Spline36Resize(1440,1080)
can be easily done with Vapoursynth, no clue why you want to mix Avisynth and Vapoursynth.
Hybrid does always apply AddBorders after the resizing, so in Hybrid you would tell Hybrid to resize to 1440 width and then set the letterbox to 1440x1080.
Cu Selur