Disregard. I was able to address this by following advice is TurboVNC seems to no longer have the -nohttpd option
Specifically, I removed -nohttpd from /opt/ood/ondemand/root/usr/share/gems/2.7/ondemand/2.0.20/gems/ood_core-0.18.1/lib/ood_core/batch_connect/templates/vnc.rb