Hi,
Ever since the latest patch I've been experiencing a rather annoying issue. When playing solo (though online/connected to steam servers) the mouse sometimes leaves the window when the menu is open. I never experience this ingame, in the shop interface or when hosting a listen server/joining a MP game.
So i press esc, and i can move my mouse around no problem, but at any given point the mouse cursor may move out of the game window, leaving the ingame cursor frozen and completely immobile until i reenter the window with the black osx mouse pointer. (I'll try to make a video of it to be a little clearer).
Another thing i've noticed is that i sometime do not get any money at all at the end of a wave. I don't know the game mechanics for distributing money, so this might be completely normal.