I've been having an issue for a couple of months now that "after a while", by which I mean after having printed a number of documents out of Acrobat, the Fiery will start to give me the opposite duplex options of what I want. If I select "top-top" the item will come out with "top-bottom" duplexing. Inevitably this will happen at the tail end of a tender as we're rushing to get all the documents out.
Opening the job in Command Workstation, it says the option is indeed set to "top-top" as I requested. If I change it to "top-bottom" and run it again, it comes out "top-top". The only way to get printing back to normal is restart my computer.
This is on Windows 10, Fiery EX-i80 Server v1.2.