Manual due date cannot override Escalation settings?
Answer Chosen by the Author
The simple answer is that "Dell KACE chose not to implement this functionality in the latest build"
Yes it makes sense for SLA's to work like that
Yes in previous versions I'm sure it used to work like that
Yes you would expect that functionality to be included as standard
So I suggest that you take to Uservoice to make sure that Dell KACE understand the reasons why you as a customer require the functionality