I'm having a very strange controller issue with BigBox. Basically if BigBox is left running and I switch HDMI sources (and then switch back) all controllers, including the keyboard, stop working. I have to ctrl+alt+del, kill the BigBox process, and relaunch it in order to get them working again.
Relevant specs:
Windows 10 x64
Core i5 / 16GB RAM
GeForce 1050 Ti
(2) Xbox One controllers (using dongle currently)