We had the same kind of experience after an upgrade from 8.8.12 to 8.8.15 NE, after the upgrade completed NG admin UI-elements were missing. An apt-get update & apt-get dist-upgrade picked up new ng-modules and then a service restart (zmcontrol stop ; zmcontrol start) brought them back.king007 wrote: I can confirm that after an upgrade to last 8.8.15 NG modules does not work at all.
In our case it's necessary to do an apt-ugrade after the upgrade, and the system takes a new packet of ng-modules from archives.
To be fair though we've also experience the scenario where we ALSO had to redeploy Zimlets via - https://wiki.zimbra.com/wiki/Reinstall_ ... Extensions