This has everything to do with displaying non-indicator icons:
gsettings set com.canonical.Unity.Panel systray-whitelist "['all']"
By setting the default setting:
gsettings set com.canonical.Unity.Panel systray-whitelist "['JavaEmbeddedFrame', 'Mumble', 'Wine', 'Skype', 'hp-systray']"
..... the indicators are clickable again.
This has everything to do with displaying non-indicator icons: Unity.Panel systray-whitelist "['all']"
gsettings set com.canonical.
By setting the default setting: Unity.Panel systray-whitelist "['JavaEmbedded Frame', 'Mumble', 'Wine', 'Skype', 'hp-systray']"
gsettings set com.canonical.
..... the indicators are clickable again.