ConfigurationChange table weirdness

Hi all,

I just added the Change Tracking solution to my LA workspace. I have connected 2 Az VMs running server 2019. All looks healthy (Event, Perf, Heartbeat data collected) but when I go to run a query against the ConfigurationChange table, sometimes it disappears. I will literally run a query that works then the 2nd time it fails because the table can't be found.

Any help would be great.