Dell Optiplex 7710 AIO issues deploying SCCM OS Task Sequence

Hi everyone,

I am having trouble deploying my Windows 10 Enterprise Task Sequence to a Dell Optiplex 7770 All-in-one. The Task sequence works for about a dozen other models of laptops and desktops. I exported the same task sequence to USB and it works perfectly when booting off the USB. However when PXE booting it keeps complaining about the disk.

After PXE booting, I run diskpart and it can see the disk fine. I've also deleted all partitions using diskpart before running the Task Sequence, however it refuses to work when PXE booted. The Task Sequence formats the disk for UEFI. I copied the disk partition settings from the pre-installed Windows 10 OS for the task sequence.

This AIO is running on an NVMe disk, so I'm wondering if that's the issue?

Snippet of errors from smsts.log

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"System partition not set"
"Unable to locate a bootable volume. Attempting to make C:\ bootable."
"Failed to make volume C:\ bootable. Please ensure that you have set an active partition on the boot disk before installing the operating system. Unspecified error (Error: 80004005; Source: Windows)"
"Failed to run the action: Apply Operating System. Unspecified error (Error: 80004005; Source: Windows)"
"The execution of the group (Install Operating System) has failed and the execution has been aborted. An action failed. Operation aborted (Error: 80004004; Source: Windows)"
"Failed to run the last action: Apply Operating System. Execution of task sequence failed. Unspecified error (Error: 80004005; Source: Windows)"

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