DISM Driver Injection Not Working

Hi everyone,

I'm having issues with DISM driver injection. I'm using DS 6.9 SP5 to deploy the following tasks

1. Deploy base OS - Deploys Windows 7 SP1 via a .img file
2. Stage PnP drivers - Copies drivers from a network share to to C:\Windows\Temp
3. Install Drivers - Executes "z:\Deployment_Resources\tools\dism\dism.exe /Image:C: /Add-Driver /Driver:C:\windows\temp /recurse /LogPath:"f:\TEMP\%ID%_DISM.LOG /LogLevel:2"

All 3 tasks are run from WinPE.

This process has worked in the past but since updating the base image it is failing. The changes include SP1 and all recent updates and Office 2020.

The drivers are definitely copied to C:\Windows\Temp and the DISM injection process reports that each available driver is installed succesfuly but when Windows loads none of the deivces are installed. If I manually update the drivers for those devices and point the process to C:\Windows\Temp the drivers are installed succesfullly.  The drivers are even available in %systemroot%\inf

Am I missing something in the configuration of the new base image or sysprep? I can't work out what the gap is.

I've tried creating brand new images but I am getting the same result. I've tried Windows 7 with and without SP1.

DISM logs are attached.

Thanks,

Grant