Is there any update from the Ultimaker Team? I have set up my S5 today, and it is throwing this error all the time.
What is really bad, is that it does not even specify whether it is the extruder #1 or #2 that is raising the exception. The log files are infuriatingly useless, they contain a million irrelevant lines but nothing that would help debugging the issue.
Lastly, the "notification" is quite useless as well. The only notification I am getting is when the print starts (thank you very much, I started it myself), but when a pause occurs, no notification is sent. I mean, seriously?