Comment 5 for bug 1292652

running image 51 and this bug still exists.

unity8 is not crashing. Launching accounts from the system settings spawns this process:
/usr/bin/online-accounts-ui --desktop_file_hint=/usr/share/applications/online-accounts-ui.desktop

When pressing the back button, the window is closed but the process remains alive for a while and maybe this is causing the problem? I would imagine that is a unity-mir/window management bug

Instead of closing the window when pressing the back button, perhaps call Qt.openUrlExternally(application:///ubuntu-system-settings.desktop) first to switch back to the system-settings app. This should promote the system-settings if it's already running (which it will be).

In the system-settings app, you can also use Qt.openUrlExternally(application:///online-accounts-ui.desktop) to launch online-accounts and this will also promote it if it's already running.