My mouse cursor disappears after inactivity o.o

[nishi...@gmail.com]

Hello,

I have this weird bug when I go afk 10-15mn : when I come back, the mouse cursor looks blocked, but I can move it while it remains completely invisible, lol (I only seen hovering on background). So it is kinda hard to click on windows and continue to use the system, I need then to shut it down.
I have disabled screen saver and power saving options on Xfce, but problem remains.
Does someone have a idea on this strange bug please and how to recover my mouse back on rejoining Qubes, please ? oO