Ok, its not that big of a deal and its an easy fix. I did call innov8tive systems and they are now aware of the issue and were able to find this from their parts.
On the clip of the motor shaft, some of the clips are .86mm and the groove in the shaft is only ,70 +/- .01mm (according to the tech support)
After speaking with you on the phone regarding the shafts with c-clips that would not fully seat to hold the motor together, I went and measured several shafts of each size and type, and then starting measuring the c-clips. The consensus was that the groove was typically 0.70mm + or - .01mm, and the c-clip that are correct are 0.68mm -0.70mm, and I have found several that are 0.85mm which is not correct. If you can measure the shaft or the clip, let me know what the measurements are, and then I can tell what is correct, and what needs to be replaced. But overall the groove on the shaft for the c-clip should be 0.7mm thick. Thank you for bringing this to my attention, this way I can foreword this to Lucien who can foreword to Georges the Owner of Scorpion. And if you can, please send the pics of the shaft and clip, that would also be helpful in my emails to Scorpion.
Take the clip and a flat file, lay the clip on the file and slowly take away a little at a time until the thickness of the clip is .70 or .69mm then it will clip properly.