Source Sequence: Uniform distribution/Straight from the start
Source Sort Order: Filename/Aplhabetically
drag and drop the folder into Sets 1, the file sequence is 1,10,11,12...19,2,20,21...29,3,30,31...,
which is obviously a wrong order;
and the output picture sequence follows the wrong Sets file order as above,
shouldn't it be like: 1,2,3...?
