Mouse cursor buggy with 2 monitor setup

[KernelPanic]

When the main window is open on one monitor but the VM window is open on the other, the mouse will not work in the VM window, just gets trapped by the X button on the main window, focus changes when you try to click in it. Did not happen prior to v7. Running Windows 10 64 bit. In the video attached, I was only able to record my rightmost screen (with the VM window in it) but the main VirtualBox window was maximized on the display to the left of the one that was recorded.