Error: Failed to store Private Key, Failed to add the Private Key to the Secret Store Vault

Symptom:

When setting up an nCipher application and pushing the certificate to the application an error occurs:

Certificate Manager - "Failed to store Private Key, Failed to add the Private Key to the Secret Store Vault (Store Result: Invalid Key) for certificate."

Cause:

The Private key is being pushed into the wrong slot number on the nCipher application or the encryption key does not exist in the slot specified.

Resolution:

By default on nCipher the partition where the encryption key is stored is in slot 1. Check your Settings and make sure the correct slot is selected.