SPE hangs in case that NTP server restarts and the system clock is set backwards.
Please apply hotfix, which is attached to this article.
Application procedure is as follows:
1. Stop SPE service.
2. Take back up of existing "symcscan", which resides under /opt/SYMCScan/bin/ directory (by default).
3. Deploy symcscan within hotfix and configure ownership and permission to meet existing one.
4. Restart the SPE service.