Hey everyone, started noticing the same issue on my server. It's pretty low population, maybe 4-5 regular players but randomly when someone will join, the server will lag for about 5 minutes. In the logs, the only issues I can see is the same "WRN Active sync could not be found to be cleared: 2096 -1536" message.
See below for last night's logs. If you search for the error you can find instances of this occurring.
https://ghostbin.com/bjZq9