There is a thread where there is a problem similar to mine: Moravian G3 16200 error on downloading.
In my case it is an apparently a random problem and I don't have any idea what is the cause, the sgp log don't give to me any clue.
I attached the log file and the sequence used:
sg_logfile_20160908211310.zip (45.8 KB)
ngc7331.zip (690.3 KB)
Maybe, as written in this thread, it is a memory problem, and I'll check as soon as possible the memory behavior during a session.
I hope you could give me a way to further investigate the problem and maybe resolve it.
The system is a Windows 7 on a 2GB RAM PC, SGP 2.5.17