coeffs -> forgot the quotes will fix later
About the width crash: Did you use Avisynth 32bit or 64bit? (I used 64bit and 4k video without a problem; also tried 32bit Avisynth with 4k video without a problem; had to change the color matrix to avoid the coeffs problem) 32bit seems to be running out of ram when scrolling inside the preview with Parade and 4k
-> will look at it this evening
Cu Selur
About the width crash: Did you use Avisynth 32bit or 64bit? (I used 64bit and 4k video without a problem; also tried 32bit Avisynth with 4k video without a problem; had to change the color matrix to avoid the coeffs problem) 32bit seems to be running out of ram when scrolling inside the preview with Parade and 4k
-> will look at it this evening
Cu Selur