Unable to resize guest window with multi-monitor

[MattF]

I have a multi monitor setup. There appears to be a bug when I resize the guest vm window if you have one monitor above the other.

My monitors are like this

MON1

MON2 MON3

If i resize the window on monitor 3 , no problem. If i resize the window on monitor 2, it will flicker, flash then instantly jump to monitor 1 and I will have to drag it back down to monitor 2 at which point it resizes itself again and I have to try to resize the window, going right back to the same problem.

I have tried re-arranging the monitors so they are side by side, and this problem goes away.