WDS - captured images won't add

I have captured a Windows 10 sysprep'ed image using two different methods:

1. pxe boot with a capture image on the WDS server: using this method, I'm able to save the image locally to a usb drive, but the option to connect to the wds server never works.  The logon screen will never connect.

2. boot to WinPE and capture the image with DISM to a usb drive.

For both methods, when I attempt to add the image to the server under "Install images", I get an error that says "The Data is Invalid".

I'm having trouble finding where the problem may be.  Any direction for troubleshooting this would be greatly appreciated!