I’ve noticed that I am getting a cursor on my renderer. I can replicate this easily by creating a Renderer (DX11), move the mouse over the renderer, and the cursor is not visible. Then create a Cursor node, and then, from that point on the cursor is visible in the renderer, even if you delete that node.
To get around this annoying behavior I have deleted the reset cursor part of Mouse (Devices Window Cyclic), and now my patches which use the Camera (Transform Softimage) in them don’t have the cursor in the window, when they shouldn’t.