Why does my mouse switch to OSX when I move between multiple monitors?

I'm using:
Win10 guest
Parallels 13
2015 Macbook Pro with OSX Sierra

I don't have any major problems with multi-monitor as described by other users. However, I have noticed that when the mouse transitions between monitors, OSX grabs it (it becomes black). Normally the mouse arrow is white under Windows. I can see that Windows is still getting the mouse position, because there's a white arrow underneath the black arrow. So it's as if OSX and Windows are both using the mouse, after I transition monitors, without clicking. If I click inside the 2nd monitor, mouse control is returned to Windows and the black pointer disappears.

This is pretty annoying because I always have to click twice after moving my mouse between monitors. It also causes strange things to happen when dragging items across monitors; it does work, but it looks like OSX and Windows are both interacting with the dragging function.

 

Report ID: 226460529
Here's a video of the issue:
https://drive.google.com/open?id=12LQjppGUdiqFGh_l-VbhC4SlLgFllzwh

First off, I don't think the mouse should be grabbed by OSX when it moves across monitors. Secondly, it looks like the hand-off isn't clean; the black and white pointers flicker twice before switching to the white pointer.

 

AlexanderF2, that is the bug. We will try to fix it.

 

Closing the loop here, this issue appears to be fixed in the latest release. Thank you!