Error setting up MSP of type BCCSP

[MHassanTariq]

Description

Hey everyone.
I'm completely new to Hyperledger Fabric. And I've been struggling a lot in finding my way understanding the core concepts of it. I've practiced on test net and things work out just fine there. I've recently tried to deploy my first prod level network. Following the Deploying a production network has helped a lot. But, for Deploy the peer, I get this error:
0001 ERRO [main] InitCmd -> Cannot run peer because error when setting up MSP of type bccsp from directory <PATH_OF_ORG_MSP>: Setup error: nil conf reference

Steps to reproduce

I have followed the following steps:

1. Bootstrap a TLS Server with credentials - Successful
2. Enroll credentials with TLS Server - Successful
3. Register and enroll Org Credentials with TLS Server - Successful
4. Bootstrap Org CA Server with Org Credentials - I got a BCCSP error here as well, but I kept my TLS key.pem in the keystore for ORG MSP, and it resolved out
5. Enroll Org Credentials with Org CA Server - Successful
6. Register and enroll Peer Credentials with TLS Server and Org CA Server - Successful
7. Update the core.yaml with tls rootcert, tls key, & tls cert files. Along with mspConfigPath for the MSP I got when I enrolled my Peer Credentials with Org CA - Faililng with the above error

If someone can help, that would be amazing. I have been stuck on this for around 2 days now.