Check out failed - unable to descrypt

Greetings,

Description of issue:
I have set up a build configuration for my project and I am using Plastic SCM for my source control. I have configured it to pull the repo from Plastic SCM and in the configuration editor it correctly populates the repo and branch fields so I know it’s connecting and authenticating.
I can also access my repo from the Plastic SCM tab on the dashboard.
Unity version: latest 2021.3

The issue is that it’s complaining that it can’t check out the code because it can’t be decrypted. I copied the key from my cryptedservers.conf file and made sure AES128 was selected:

XCode version: N/A

Source control: Plastic SCM

Local build platform: Automatic

Build target: Windows

Build log (relevant chunk):
Data cannot be decrypted, please check your Cloud Build project settings to make sure that you are providing an encryption key, and that your encryption key is correct.
! checkout failed. Error During Plastic Checkout: Failed to Update

8734746--1182378--upload_2023-1-16_13-26-28.png

I also tried using the contents of my key file as specified in this thread: Which Encryption Key Should I use for Unity Cloud Build? - Unity 3D - Plastic SCM Community

I found where I had saved the encryption key for plastic and used that and got past that issue.