Have seen numerous posts on this, but the only solution reported to work (adding a delay to the gnome settings daemon plugin) doesn't work.
Ubuntu 16.04 in a VMWare Workstation 12 VM.
- Installed fresh copy of Ubuntu
- Copied custom theme into ~/.themes
- Copied custom icons into /usr/share/icons
- Changed theme and icons via Unity Tweak Tool
Everything looked fine until a reboot.
After reboot, title bar and Nautilus wouldn't theme:
Checked dconf org.gnome.settings-daemon.plugins.xsettings & it's 'active' as it should be.
Kind of stumped, welcoming any ideas!