If you have only managed to find one post about this which was 6 years ago then the chances are it is operator error rather than a software problem. I have had this a few times & on every occasion it has been due to me leaving something open which I shouldn't have. The usual one for me is the toolpath set up form because I go & look at that & then go back to drawing operations without first closing the toolpath set up form
This is a user to user forum so if it had been a problem with the software that had been fixed by Vectric support it wouldn't have been added to this post
Have you contacted Vectric support about this ? Don't know why you can't upload an image, don't think there are any restrictions on new forum members, just the ones that exist for everyone on file type & file size.