Phonebook.xml TFTP download broken after 6.12 upgrade, other TFTP updates work

Weird. Config changes and firmware updates work and download to the phone correctly, but no go on phonebook.xml. Using grandstream phones - I also found and enabled TFTP download in the base band file section. Was working properly under 6.11

Changed basefile to 1 for http download of phonebook.xml, rebuilt configs and rebooted phone. Still no go. Sysadmin pro has “HTTP Provisioning” listed as port 84, and I see /tftpboot listen:84> in the schmoozecom.conf file.

Any thoughts on what I can try to getting the phonebook.xml file working again?

How did you get your phonebook.xml working to download to grandstream phones?