CapsLock keeps pressing on Ubuntu above Virtualbox

I changed the keyboard settings in Ubuntu on VirtualBox on Windows host and use CapsLock as Ctrl, but once I press Caps, Ctrl is always enabled.

In my environment, I use Caps as Ctrl, so I would like you to enable Ctrl only while you press the CapsLock key, but once you press CapsLock, Ctrl continues to press even if you let go of CapsLock.

And somehow (Shift-Caps key) will release Ctrl.

The fixed key function is turned off.

What should I do if I think the CapLock behavior on the Windows side is affecting me?

US>Each Version
VirtualBox:6.0.10
Host:Windows 10 Home 1903 Guest: Ubuntu 19.04
Gnome 3.32.1