in the meantime LAStools was also updated to correctly handle your previous command line. Download the latest version (180520) that also have these changes below:
20 May 2018 -- LASlib, all LAStools: bug fix when trying to set CRS via '-gda94 -utm 56south' in command line
19 May 2018 -- lasnoise, lasheight, & others: bug fix when on-the-fly filtering on additional attributes
12 May 2018 -- las2las, LASlib: new filters '-drop_RGB_red 5000 6000' and '-drop_RGB_green 200 10000'
8 May 2018 -- las2las: handling of OGC WKT and more clear "setting" versus "reprojecting" the CRS
29 April 2018 -- all LAStools GUIs: allow to overlay a PNG assuming it has a world-coordinate PGW file
23 April 2018 -- lasview: for manual editing also "<r>egister changes" avaulable via pop-up menu
22 April 2018 -- lasview: also display 'user data' attribute for points picked with 'i'
21 April 2018 -- lasgrid, las2dem, lascanopy: fix bug of removed filters/transforms when gridding/rasterizing '-attribute ...'