Appearance Customizations Lost

I’ve just done a fresh, minimal install of 18.04. I’ve customized icon, widget, and font styles, but whenever I reopen the “Budgie Desktop Settings” application, they all reset to their defaults. Is there a way I can prevent this?

I did download/apply a couple of the themes from the “Budgie Themes” application before I customized things, and those settings seem to be the ones overriding my customizations. Can I “unset” a theme from there?

During the install, do you have your /home folder on a separate partition? Did you format /home

No. This was a fresh, “erase everything” install into a VirtualBox VM.