Hi,
I've been using my Kali VM over the last year with only a few hiccups. After my host laptop needed a Windows reinstall I also updated Virtualbox to the latest version (5.2.12). Installed the latest guest additions using apt, which didn't use the latest ones so I downloaded and used the latest iso image. All good. Patched Kali with about 800MB worth of updates but that seems to
cause problems. Kali Linux is the latest version as of yesterday.

The workspaces on the right hand side of the screen are no longer displayed. I can't use the mouse to click on anything AFTER logging in. The terminal window is active so I can run commands from there. But the applications menu is not accessible nor is anything on the desktop or the applications on the left hand side menu.
Right click in the terminal window is not working either.

Since I still have access to a terminal I can do some troubleshooting but don't know where to start. Guest additions was my first guess but that seems to be OK now. When logging in I can click the login button so generally mouse capturing in Virtualbox is working as expected.

Since I had a backup of the Kali hard drive image I copied that to the Windows host, updated the guest additions, it works again. Patched the machine again, works until I reboot, then the problem reappears.

Found some errors with journcalctl but not sure what to do about it or if they're related to the problem.
journcalctl_error.JPG

Can someone give me some pointers as to where to start troubleshooting? It's a rather weird problem as I don't get any errors.

uname -a
Linux kali 4.16.0-kali2-amd64 #1 SMP Debian 4.16.12-1kali1 ...

Thanks!