My old Buildbotics Xbox wireless controller was plugged in but not recognized. I unplugged it and plugged it back in again and it shows in the pop down menu but still will not connect. Also note the sizing problem.
Known issue. You need to unplug and replug until it shows up, then hit detect until it shows connected.
Its on the list to be perfected in future firmware.
Here again it would be nice to have a place to lookup bug reports and see if they have already been submitted, Using the forum seems clumsy. I would suggest you create a project on Github where issues could be submitted and viewed,
Solved in version 1.4.18!