[ubuntu] Mouse can't capture VM console screen

Hi all,

Host - ubuntu 16.04 desktop
Gust - ubuntu 16.04 server
VirtualBox

VBoxGuestAddition_5.1.22 already installed.

/etc/default/grubUSB - (check) USB 3.0 (xHCL) Controller

Also having tried (check) USB 2.0 (xHCL) Controller

Please help. Thanks

Regards
satimis