Cannot Import Win10 DCIS Image into SCCM

Running SCCM Version 1802, June 15th roleup, DCIS v5.0, Windows ADK 1803.

When I attempted to use DCIS to import drivers to my primary boot image, it gives me a generic "the selected boot image is not compatible with the installed version of windows ADK" error.

I've researched this a fair bit, and found this post - https://www.dell.com/community/Enterprise-Client/WinPE10-Driver-Cab-Import-Failing/m-p/4766257

This did nothing for me. I've tried recreating the boot image from scratch, to no avail. Is there anything I can do here? I have some Latitude 3350's that won't stay in the boot image as it can't find a network driver. 

Thanks in advance.