Using the latest Windows build from here. I’ve found a bug where the cursor will disappear when you try resize the tree view pane. Once you hover over the pane edge it goes from a arrow to nothing then back to the arrow as you move into the text buffer. I would expect to see the <-|-> sort of icon you would see when resizing a split pane.
Tested on Windows 7, which should be fully patched up. I haven’t tested on OSX yet but will do if no one else does once I am home.