My print jobs are "completing" in a matter of seconds. When I send the job from cura to my ultimaker s5 pro bundle via Wi-Fi it starts to get ready for the print and then moments later it says "finishing". I do not get the print completion screen. I have tried printing different files, with other materials and by using a usb drive to import the file instead of the internet connection. I have also restarted both the printer and Cura to no avail .
I had the same issue with my S5 and material station, but it was only related to one specific material. It turns out that some material was clogged inside the material station.
I would make sure that there is no material clogged somewhere along the feed line.