i have been getting this same error with multicast enabled DPs.
it only occurs when my server is on one domain and the DHCP suffix for the machine i am imaging is on another.
i have been able to get partial success:
1. dism mount the boot images 2. update the windows\system32\drivers\etc\hosts a. add all the IP and shortnames only of all SCCM servers NO FQDN example 10.10.10.10 sccmserver1 3. dism commit
4. dism mount
5. redistribute
this only seems to work on multicast enabled VLANs, i still get the hash error on other VLANs if its a mixed site.
hopefully this helps a few in further testing, let me know if you have a further workaround!