Hello Polina. I have progressed with this problem.
I have a 3 screens configuration PC.
the problem appears in all the screens excepted the MAIN one.
An did some tests changing the main one and I never have any problem in the main one.
In the secondaries screen I have some times the problems and some no. I haven't found any pattern.
What is the problem?
I go the the logged system. Put my mouse on it. Then the quick view (advanced hint windows) appears.
In the main screen it appear just near the icon and I can place my mouse on it and move it.
But if I am in secondaries screens, the quick view windows appears "far" fr om my mouse. And as soon as I move the mouse to get over the windows, the windows close.
I include an image wh ere you can see the big space between both windows.
One curious thing I have discovered taking the screenshot is: after the screenshot the quick windows is stable and I can move it normaly.
I understand this is a weird one and don't expect a solution soon.. Just for your information.