Hot Windows closing after resizing/repositioning

I don't really know, if that's a bug. But I was playing around with the hot windows and love the idea. But it's a bit cumbersome to work with them, because they close so easily. Often the window opens and it's so small, it doesn't display all the content. So I want to resize it, but as soon, as I move the mouse after letting go of the mouse button, the window closes. Also, If I want to reposition the window to have a better look at something, as soon as I move the mouse after being done repositioning, the window closes.

fixed.