Have added several custom wallpapers as previously done in the past, by adding them into the /usr/share/backgrounds/
directory, then adding a custom XML file copied from the numix style wallpapers and calling it mypics.xml which is added under /usr/share/gnome-background-properties/
directory.
Permissions and ownership are all correct as matches the working backgrounds, but for some reason, the backgrounds no longer show in the Appearance options. They do on another computer using the exact same method without issue.
The only difference here is that the entire hard-drive is encrypted (not sure that makes any difference whatsoever) whereas only the home directory is encrypted on the other machine. In one scenario, no issues, but in the other - it fails to alter the Appearance tab even after reboot.
Am I missing some crucial bit of information here? Is there another piece to the equation missing somewhere?