Did StackHorizontal/StackVertical change in AVS+? Using this simple script, the shorter clip still continues for whatever reason:
Code:
left = AVISource("test1.avi", pixel_type="YUY2").trim(2000, 3000)
right = AVISource("test1.avi", pixel_type="YUY2").trim(3000, 3500)
StackHorizontal(left, right)
test1.avi is over 5000 frames long.