RSA 4096 Private Key Import to HSM using key_mgmt_util

Using Amazon Linux 2 HSM client with a working HSM cluster I am having trouble using this command:

importPrivateKey -f rsa4096.key -l triactaRootCAPrivateKey -w 1835014
Enter PEM pass phrase:
failed to read private key from file

I am able to verify this key with openssl that the passphrase is correct. What am I potentially doing wrong? Are there logs or other way to find out more about this error message.