Sorry to hear that you are having trouble to print the target correctly.
I do see you are running a printing business
so as I
and which means I would put more time on finding business and doing the actual print.
I had found this kind of problems a few years ago and this is why I bout Qimage to eliminate all this "no color management" BS (excuse for my language

)
Non of these software could give me a consistent performance and workflow when there is a major update on the OS
Hope this would help you a bit
For your original question, sorry, there nothing I can tell but hopefully the other members could give you a right answer which I would also love to learn too.
Thanks
Aaron