RDS Aurora's audit logging is not working often.

Hi,

I'm using RDS Aurora over 5years. and I turned on audit logging last year for security policy hardening, and it make audit log on CW very well untils I upgrade instance on march.

After I upgrade instance from r5.xlarge to r6i.2xlarge, It made a log well at first. But once a week(most of) audit logging is stopped to make log, even though the 'server_audit_logging' is ON.

It occur once a week, during the weekend, I checked every configuration as I possible, but only way to make it wokring again is just turn 'server_audit_logging' configuration OFF and ON again, it make log again.

Is there anyone has experienced same issue, or knows a solution about it ?

Thanks