[ubuntu] VirtualBox 6.1.22_Ubuntu, File Manager will crash VM when X the File Manager

on Ubuntu 20.04 host, VirtualBox 6.1.22_Ubuntu r144080

virtualbox-6.1_6.1.26-145957~Ubuntu~eoan_amd64.deb, Oracle_VM_VirtualBox_Extension_Pack-6.1.18.vbox-extpack (newer extension pack breaks USB 2+), virtualbox-guest-additions-iso (6.1.22-1~ubuntu1.20.04.1)

1. Boot a VM, I am using Windows 10.
2. on VirtualBox menu, select Machine > File Manager
3. close the File Manager by clicking the X button on the top right of the File Manager

actual results:
VM crashes

expected results:
File Manager to close

note:
clicking the Close button works as expected

attached:
VirtualBox log file

Attached Files

• Windows10Android-2021-08-21-09-51-55.zip (18.2 KB)