15.x and Newer
When posting a certificate to a Microsoft CA you encounter this error:
PostCSR failed with error: Bad Data. (Exception from HRESULT: 0x80090005)
Inability of the CA to publish its CRL, to check its revocation status, or to access its HSM-protected private key at the time of the certificate request
Restarted the services on the CA.
The customer should consider using the Microsoft CA Redundancy feature we added in 19.1.