Ensure the proper variables are exported, so it doesn't load a vanilla LXQt session.

scripts/start-lubuntu-live-env

@@ -4,5 +4,8 @@
 openbox &
 lubuntu-installer-prompt # This is intentionally *not* backgrounded.
 # If it exits...
+export XDG_CONFIG_DIRS="/etc/xdg/xdg-Lubuntu:"$XDG_CONFIG_DIRS
+export XDG_DATA_DIRS="/usr/share/Lubuntu:"$XDG_DATA_DIRS
+export DESKTOP_SESSION="Lubuntu"
 killall openbox
 startlxqt