System Health Extented Event - Security_Ring_Buffer_Error_Recorded
Based on my understanding, this is just a noise that you can ignore. 

This event is a part of sqlserver.security_error_ring_buffer_recorded event. It is detailed logging telling you what it is doing with the security errors (e.g. failed logins) to make sure they don't get lost.

The API ImpersonateSecurityContext (provided by SSPI) allows a server to impersonate the client's security context - meaning : the server can authenticate the client and use the client's security context for local access checks directly or by passing the context to another server on the same machine.

I would safely ignore those. 

BTW, I am able see the same output on SQL Server 2012 + RTM + (Build11.0.2100.60)