The wireless trackball and usb keyboard are plugged into an external usb hub and work fine when the hub is connected directly to either my windows or linux machine.
When the hub is connected via the Dual Pico remapper, the keyboard only works if the trackball receiver is not plugged in. Plug in the receiver and only the trackball works.
I have another hub on its way to me. Perhaps that will cure it, but that leaves a quesion.
Where is remapper falling down?
Linux and windows are able to ‘see through’ the hub perfectly well.