Add multiple certificates in MDT task sequence

I am using a deployment task sequence to call a Powershell script to install multiple certificates, but it is not installing them.

I am using the following in the Power Shell Script:

Import-Certificate -FilePath "%DeploymentRoot%\Scripts\certs\cert1.cer" -CertStoreLocation Cert:LocalMachine\My

Import-Certificate -FilePath "%DeploymentRoot%\Scripts\certs\cert2.cer" -CertStoreLocation Cert:LocalMachine\My

Import-Certificate -FilePath "%DeploymentRoot%\Scripts\certs\cert3.cer" -CertStoreLocation Cert:LocalMachine\My
```I tested changing to the full path and installs fine on the server.

I tested the following in the PS script, but doesn't seem to work eventhough if I run the same code while in the last stages of the imaging processs does work.

```powershell
Set-ExecutionPolicy Unrestricted 

z: 

cd Scripts\certs 

Import-Certificate -FilePath "cert1.cer" -CertStoreLocation Cert:LocalMachine\My
```I searched the logs in folder C:\windows\temp\Deployment\Logs, but I don't see any filename for that Task Sequence. I did set the task to "Continue on Error".