Intermittent Error "Keyset does not exist"

Hi All,

We are getting an error "Keyset does not exist" ("source": "System.Security.Cryptography.Csp") randomly in Azure Functions with MSAL library while accessing OAuth token using certificate-based authentication. The error is intermittent. We couldn't identify the root cause and looking for a permanent fix to this issue. Can anyone help, please? Attached screenshot of the code.