This morning I found and fixed a number of bugs in the config dialog of the blight input plugin; one of them could have been causing your problem. You'll have to test to find out. I fixed the problem which was probably causing the segfault someone here reported, and I fixed an issue that occurred whenever the user would configure an N64 button with a joystick axis, and do 2 buttons in a row - the 2nd button configuration would flash up and automatically select the previous axis/direction for itself.