Spectrum tomcat continuously restarting. Even set to manual and Spectrum Process Daemon is stopped in services.msc
Checking $SPECROOT/tomcat/logs/stdout.log, log is overwritten every time service restarts.
Check for any antivirus/security software that may cause this.
In this instance, Zabbix was causing this behaviour
Disable/remove Zabbix or other antivirus/security software from server. Or Whitelist the Spectrum/Oneclick application so the 3rd party software does not have permission to start/stop/restart Spectrum services.