Customer informed that the scheduled Online Backup crashes sometimes the primary and all the time the secondary SpectroServer.
The SE team informed, that they could see in the crash dump file (*.mdmp), that the last action was a LLDP discovery from devices, which seem to have caused the issue of the crash.
There is a debug patch for Spectrum 10.2.3 available, which is called Spectrum_10.02.03.D351. D351 has a potential fix in it and it solved the issue at customer site.
Online Backup is running and no SpectroServer crashes since.
If you can see the same issue, please open a support case and ask for Spectrum_10.02.03.D351.