My desktop icons are also rearranging themselves between logins, but it seems to be specifically the icons managed by xfconf (i.e. "Home", "Filesystem", "Rubbish Bin") - any other icons seem to retain their positions ok. I'm on Xubuntu 18.04 with all updates, and xfdesktop4 version 4.12.3-4ubuntu2. This wasn't happening on my previous 16.04 installation.
My desktop icons are also rearranging themselves between logins, but it seems to be specifically the icons managed by xfconf (i.e. "Home", "Filesystem", "Rubbish Bin") - any other icons seem to retain their positions ok. I'm on Xubuntu 18.04 with all updates, and xfdesktop4 version 4.12.3-4ubuntu2. This wasn't happening on my previous 16.04 installation.