Can't convert Steven slate and Jerry Lyons midi clips to step sequencer in session drummer

 Hi, basically just what the headline says , I can't convert any of these midi clips 2 Step sequencer in session drummer 3, everytime I try all the data within the clip goes missing, can do this no problem with any of the other midi clips , ie groove monkey and the like, all you do is right click on the click and choose convert to set sequencer but I can't do this with the Steven slate and Jerry Lions clips, this is an absolute pain in the arse,  as these clips have the best 6/8 time in sonar
 
Thanks in advance