Dear all, I always get the following error message when I try aimless with unmerged xia2_3dii.mtz files: run 1 has insuffient information for smooth scaling. It works fine with all the unmerged files processed by DIALS, fast_dp or xia2_3d. I have also tried the same thing on different operating systems and have got the same results. Are there any ideas about that? Many thanks. Jason