The variable preview window pins itself if open when stepping forward/into

When debugging if I hover over a variable, it will display its value. If, while that window is open, I press F10 or F11 the window will reappear pinned at some point. This looks like a bug to me, especially when using F11 since it re-appears only when I step out of the code and doesn't necessarily stay on-screen when going into the function.