Mac Version Via Steam - v1.5.10
MacBook Pro Retina, 15-inch, Late 2013 Up to date Mac OS
Playing via Trackpad, no external mouse handy to test...
Playing in Windowed mode.
Odd bug. I had a game in progress earlier today, closed the laptop. Usually no issue. When I opened laptop later to resume the mouse pointer is "stuck" along the top edge of the game window. I can move it left and right, but not down. It stays stuck. If I move out past the game window, the standard system pointer reappears and I can use it fine. I don't think it's an OS issue, as soon as I click back into FTL (or CMD-Tab) the pointer is again stuck.
Image:

I would really prefer not to give up this game if at all possible

Thanks!