Perhaps the question is best equipped for a salesperson at Solarwinds.https://www.solarwinds.com/company/contact-us
Most probably maximum log file size.https://solarwindscore.my.site.com/SuccessCenter/s/article/Maximum-number-of-messages-for-Kiwi-Syslog-Daemon?language=en_USthwack.solarwinds.com/.../how-to-improve-your-experience-with-log-analyzer-and-orion-log-viewer
Lots of good info here - https://documentation.solarwinds.com/en/success_center/la/content/lm/lm-feature.htm