On the Windows 10 operating system, emserver may crash on reconnect when there is more than one job in the queue. This does not happen every time, but happens intermittently. In the job queue, the progress bar will turn red and you will see the following message:
Lost connection to server; exiting.
The job could be still running on the server.
There is a bug in Sonnet which may cause emserver to crash when attempting to reconnect a job.
This bug was fixed in version 17.56
KBRef#:13322