iLO4 FW version 2.55 SSL certificate import errors

[JS-SSI]

We have SSL certificates generated from DigiCert, using CSRs from the iLO cards, whenever we attempt to import the certificate into the iLO we get this error:

Error: The Certificate could not be imported from the supplied X.509 Certificate data.

Verify the following: 
- The input text was base64-encoded X.509 certificate data.
- The provided certificate data was intended for this server (not another server).

The certificates are .PEM format, what could the issue be?  I see that there were previously issues with importing certs over a certain size, ours are definitely over that size at 5.25Kb, is that still a thing?

[VinnyWills]

Please note these following points 

If you have reset ILO during the process you have to use the new certificate.

After you obtain the certificate, ensure that:
• The Common Name (CN) matches the iLO FQDN. This is listed as the iLO Hostname on
the Information→Overview page.
• The certificate is generated as a base 64-encoded X.509 certificate, and is in the RAW
format.
• The first and last lines are included in the certificate.

After installing Restart iLO.